{"title":"Air Purifier Filter Replacement Guide","description":"\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe PuroAir Filter Replacement Guide is for air purifier owners looking for more information and best practices when it comes to maintaining a clean air indoor environment, at all times. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIn this guide, we’ll take a closer look at the different types of filter materials available, from HEPA filters that purify ultra-fine particles to activated carbon filters that absorb odors and volatile organic compounds (VOCs). We’ll explain how each material works, what pollutants they target, and which environments they’re best suited for.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWe’ll also dive into the optimal replacement frequency, since filters gradually lose efficiency as they fill up with contaminants. Knowing when to change your filter, whether every few months or annually depending on usage, ensures your purifier continues to deliver clean air without straining the motor or wasting energy.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eBeyond materials and timing, this guide covers other key aspects of filter care, such as recognizing signs of wear, understanding manufacturer recommendations, and how environmental factors like pets, smoke, or seasonal allergies can shorten filter lifespan. By following these best practices, you’ll keep your purifier running strong, extend its lifespan, and enjoy consistently fresh, healthy air throughout your home.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003ch3\u003eWhat is the best air purifier filter replacement for allergies?\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/getpuroair.com\/collections\/puroair-air-filter-replacements\" title=\"puroair replacement filters\"\u003ePuroAir HEPA + Activated Carbon Filter Replacements\u003c\/a\u003e are designed with allergy relief in mind. Each purifier filter has 3-layers of defense against large particles, fine allergens, and odors. The heart of each PuroAir air purifier is the best-in-class multilayer HEPA filter. It's composed of a pre-filter screen layer to filter large particles, a HEPA filter layer to filter up to 99.9% of microscopic allergens* and pollutants, and an activated carbon filter layer to reduce odors, smoke, and harmful VOCs. \u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePer \u003c\/span\u003e\u003ca href=\"https:\/\/getpuroair.com\/blogs\/news\/sleepscore-labs-puroair-report\"\u003e\u003cspan\u003eSleepScore Labs\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e, exposure to allergens at night can irritate nasal passages and worsen nasal congestion. This may also lead to disruptive breathing and discomfort. SleepScore Labs tested 35 participants for a combined 800 hours of sleep to understand the difference between sleeping with and without a PuroAir air purifier. Here’s is what participants experienced with an air purifier:\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOverall, participants experienced 6% increase in deep sleep, with 4 more minutes per night.\u003c\/li\u003e\n\u003cli\u003e80% of participants felt the air purifier reduced allergy symptoms and improved sleep.\u003c\/li\u003e\n\u003cli\u003e97% were willing to recommend the PuroAir 240 air purifier to others.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003ePuroAir HEPA Filter Replacement Benefits:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003ePuroAir Filter Replacements have three layers of defense.\u003c\/li\u003e\n\u003cli\u003eHEPA filters are designed to filter out 99.9%* of particles as small as 0.1 microns. This includes most common allergy triggers like pollen, dust, dander and smoke.\u003c\/li\u003e\n\u003cli\u003eCarbonTech™ Filter: In addition to the HEPA filter layer and pre-filter, PuroAir air purifiers have activated carbon filters that can absorb odors, and some gases.\u003c\/li\u003e\n\u003cli\u003eLifetime Purifier Warranty with Filter Subscription.\u003c\/li\u003e\n\u003cli\u003ePre-Filter screens for larger particles like dust, hair, pollen, carpet fibers and other visible debris.\u003c\/li\u003e\n\u003cli\u003eLab tested \u0026amp; proven to filter up to 99.9%* of pollutants.\u003c\/li\u003e\n\u003cli\u003eEasy installation and maintenance.\u003c\/li\u003e\n\u003cli\u003ePuroAir Filter Replacements are designed to last up to 90 days, or 3 months.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"#allproducts\" class=\"shop-btn\"\u003e\u003cstrong\u003eShop Now\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy you should replace your air purifier’s HEPA filter versus washing or vacuuming:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003e❌ \u003cstrong\u003eVacuuming:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt might be tempting to try and extend the life of your filter by vacuuming off the surface. After all, it looks like an easy fix. Unfortunately, vacuuming your air filter can actually do more harm than good. Filters, especially HEPA filters, are designed to collect fine particles deep within their fibers, and vacuuming won’t fully remove these particles; in fact, it can push them deeper into the filter. The force of a vacuum can also damage the delicate filter material, reducing its ability to trap pollutants effectively. On top of that, because a vacuum isn’t airtight, you may unintentionally release some of the trapped contaminants back into your home, undoing the very purpose of the filter.\u003c\/p\u003e\n\u003cp\u003e❌ \u003cstrong\u003eWashing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMost HEPA filters cannot be washed because water and cleaning solutions damage their delicate fibers and reduce their ability to trap pollutants. These filters are designed to capture microscopic particles deep within their weave, and washing can break down the material or loosen the fibers, making them far less effective.\u003c\/p\u003e\n\u003cp\u003eEven if you rinse a HEPA filter, many of the fine particles remain embedded inside. In fact, washing can push contaminants deeper into the filter, clogging it permanently and restricting airflow. This means the purifier has to work harder, while delivering less clean air.\u003c\/p\u003e\n\u003cp\u003eFor these reasons, PuroAir recommends replacing the HEPA filter in your air purifier rather than washing it.Your HEPA filter should be swapped out on schedule to ensure your air purifier continues to perform at its rated efficiency.\u003c\/p\u003e\n\u003cp\u003e✔️ \u003cstrong\u003eReplacing:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReplacing the air filter in your PuroAir Air Purifier is essential for maintaining clean air in your home. According to the \u003ca title=\"EPA Indoor Air Quality\" href=\"https:\/\/www.epa.gov\/indoor-air-quality-iaq\/guide-air-cleaners-home\"\u003eEPA\u003c\/a\u003e, HEPA filters should be replaced every 90 days, or more frequently if exposed to poor air quality, such as home renovations, pollution or wildfire smoke. Regular filter changes ensure your purifier provides a healthier indoor environment, which can also enhance cognitive function and help reduce respiratory issues.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"#allproducts\" class=\"shop-btn\"\u003e\u003cstrong\u003eShop Now\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAdditional Benefits of PuroAir HEPA Filters:\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eDid you know that PuroAir HEPA Air Filters also include an activated carbon layer to help reduce odors and absorb smoke and VOCs? While the HEPA filter is highly effective at trapping microscopic particles such as dust, pollen, and pet dander, it cannot capture gases or odors. That’s where the CarbonTech™ Activated Carbon Filter comes in. This layer is made from porous carbon material that has been treated to create millions of tiny surface pores. These pores act like a sponge, adsorbing volatile organic compounds (VOCs), smoke particles, and household odors from cooking, pets, or cleaning products.\u003c\/p\u003e\n\u003cp\u003eBy combining particle filtration with gas and odor absorption, PuroAir filters provide a more comprehensive approach to indoor air quality. This dual-layer design ensures that your purifier not only removes harmful allergens and fine particles but also addresses the everyday odors and chemical pollutants that standard HEPA filters alone cannot capture, helping you maintain a cleaner, healthier, and more comfortable living environment.\u003c\/p\u003e\n\u003ch3\u003eHow much do air purifier filters cost?\u003c\/h3\u003e\n\u003cp\u003eDepending on the air filter size and quality, replacement air purifier filters can range from around $10 to $100. \u003c\/p\u003e\n\u003cp\u003eSince low-end filters typically last 30 days, you would need to replace the filter 12 times per year! Let’s say the average cost for a “cheaper” filter is around $20, then you would end up spending $240 per year on replacement air filters. But this does not include the price of low quality air filtration from these products. While multi-stage HEPA filters can cost around $40-$80+, but last up to 3 months before replacement. So, $40 HEPA filters with activated carbon would end up costing around $160 per year ($40 x 4 = $160).\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003ePuroAir HEPA Replacement Filters last up to 3 months before needing to be replaced. This means you would only need to purchase 4 filters per year, which would cost a fraction of the price of low-end filters after 12 months. The initial cost is higher per replacement filter, but is lower when compared per month. For example:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 standard replacement filter costs ~$20. Since each filter lasts 1 month, that’s $20\/month or $240\/year.\u003c\/li\u003e\n\u003cli\u003e1 PuroAir 240 HEPA replacement filter costs $33 with filter subscription. Since each filter lasts 3 months, that’s ~$11\/month or $132\/year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat is the REAL cost of cheap filters?\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eCheap air purifier filters may look like a bargain upfront, but they often end up costing far more in the long run. Low‑quality filters typically use thin materials that filter only the largest particles, allowing allergens, dust, and pollutants to continue circulating through your home. Because they clog quickly and lose efficiency fast, they need to be replaced far more often. This means you spend more over time for less protection.\u003c\/p\u003e\n\u003cp\u003eBeyond the replacement cost, the hidden expenses are even bigger. When a filter can’t properly mitigate fine particles, your purifier has to work harder to push air through, which can shorten the lifespan of the unit and increase energy use. Poor filtration also means more exposure to irritants like pollen, pet dander, smoke, and VOCs, all of which can contribute to allergy flare‑ups, respiratory discomfort, and more frequent doctor visits.\u003c\/p\u003e\n\u003cp\u003eInvesting in a high‑quality HEPA filter like PuroAir’s ensures your purifier performs at its best, lasts longer, and actually delivers the clean, healthy air you’re paying for. In the end, the “cheap” filter is rarely the cheapest option.\u003c\/p\u003e\n\u003ch3\u003eHEPA Ratings:\u003c\/h3\u003e\n\u003cp\u003eChoosing the right HEPA filter makes a huge difference in how effectively your air purifier cleans the air. Not all “HEPA” labels mean the same thing. Non-HEPA filters capture only larger particles, while HEPA filters meet strict standards for filtering ultra‑fine pollutants like dust, pollen, pet dander, and smoke. HEPA + Activated Carbon goes even further for specialized environments. For most homes, HEPA + Activated Carbon (like the filters used in PuroAir HEPA + CarbonTech™ purifiers) delivers the ideal balance of powerful filtration, cleaner air, and everyday protection for families, allergy sufferers, and anyone who wants healthier indoor air.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"#allproducts\" class=\"shop-btn\"\u003e\u003cstrong\u003eShop Now\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eComparison Table:\u003c\/h3\u003e\n\u003ctable style=\"width: 100.087%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 29.9737%;\"\u003eFilter Type\u003c\/th\u003e\n\u003cth style=\"width: 18.5802%;\"\u003eParticle Capture Efficiency\u003c\/th\u003e\n\u003cth style=\"width: 23.8387%;\"\u003eSmallest Particle Size Captured\u003c\/th\u003e\n\u003cth style=\"width: 26.468%;\"\u003eWhat It Filters\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.9737%;\"\u003eHEPA-Type\u003c\/td\u003e\n\u003ctd style=\"width: 18.5802%;\"\u003e\n\u003cp\u003e50–90% (varies widely)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 23.8387%;\"\u003e2–5 microns\u003c\/td\u003e\n\u003ctd style=\"width: 26.468%;\"\u003eLarge dust, lint, some pollen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.9737%;\"\u003eHEPA (\"True\" HEPA)\u003c\/td\u003e\n\u003ctd style=\"width: 18.5802%;\"\u003e99.97%\u003c\/td\u003e\n\u003ctd style=\"width: 23.8387%;\"\u003e0.1–0.3 microns\u003c\/td\u003e\n\u003ctd style=\"width: 26.468%;\"\u003eDust, pollen, pet dander, mold spores, smoke particles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 29.9737%;\"\u003eHEPA + \u003cmeta charset=\"utf-8\"\u003eCarbonTech™ Activated Carbon\u003c\/td\u003e\n\u003ctd style=\"width: 18.5802%;\"\u003e99.97%\u003c\/td\u003e\n\u003ctd style=\"width: 23.8387%;\"\u003e0.1 microns\u003c\/td\u003e\n\u003ctd style=\"width: 26.468%;\"\u003eDust, pollen, pet dander, mold spores, smoke particles, odors, VOCs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eWhy you should stay away from generic air purifier filters:\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower efficiency for fine particles:\u003c\/strong\u003e They are less effective at capturing tiny allergens like pollen, mold spores, or smoke compared to HEPA air filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher yearly cost: \u003c\/strong\u003eGeneric, low-grade filters cost more in the long run since you will need to purchase more per year compared to HEPA filter replacements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotential strain on the air purifier system: \u003c\/strong\u003eIf clogged or improperly maintained, they can restrict airflow and reduce system efficiency.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGeneric Air Purifier Filters vs. PuroAir HEPA + Activated Carbon Air Filters\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eGeneric Air Filter\u003c\/th\u003e\n\u003cth\u003ePuroAir HEPA + Activated Carbon Filter\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFiltration Standard\u003c\/td\u003e\n\u003ctd\u003eVaries widely. Often does not meet HEPA standards\u003c\/td\u003e\n\u003ctd\u003eHEPA meets strict industry standards (captures up to 99.9% of particles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParticle Capture\u003c\/td\u003e\n\u003ctd\u003eMay capture larger particles well, but smaller particles less effectively\u003c\/td\u003e\n\u003ctd\u003eCaptures fine dust, pollen, smoke, pet dander, mold spores\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAir Quality Impact\u003c\/td\u003e\n\u003ctd\u003eModerate to low. Depends on material quality and design\u003c\/td\u003e\n\u003ctd\u003eHigh. Significant reduction in airborne contaminants\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAllergy Benefits\u003c\/td\u003e\n\u003ctd\u003eMay be sufficient for general dust control\u003c\/td\u003e\n\u003ctd\u003eVery effective for allergy sufferers and sensitive individuals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eCompatibility\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003eMay not fit into or seal air flow in purifier\u003c\/td\u003e\n\u003ctd\u003ePatented design to fit PurAir air purifier perfectly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLongevity\u003c\/td\u003e\n\u003ctd\u003eCheaper media may clog faster\u003c\/td\u003e\n\u003ctd\u003eLonger life due to high quality media and design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications and Testing\u003c\/td\u003e\n\u003ctd\u003eRarely certified ot a specific filtration efficiency\u003c\/td\u003e\n\u003ctd\u003eIndependently tested and certified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest Use Cases\u003c\/td\u003e\n\u003ctd\u003eBasic dust reduction in low-pollution environments\u003c\/td\u003e\n\u003ctd\u003eHomes with allergies, smoke concerns, pets, or compromised air quality\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003ePuroAir Air Purifier Filter Replacements Comparison\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003cth\u003eCoverage\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/getpuroair.com\/products\/puroair-130-air-filter-replacement\" title=\"130i hepa replacement filter\"\u003ePuroAir 130i\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSmall rooms, studios, apartments\u003c\/td\u003e\n\u003ctd\u003e600 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/getpuroair.com\/products\/puroair-240-air-filter-replacement\" title=\"240 hepa filter\"\u003ePuroAir 240\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eSmaller rooms, homes with room separation\u003c\/td\u003e\n\u003ctd\u003e1,000 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/getpuroair.com\/products\/puroair-400-filters-1\" title=\"400 hepa filter\"\u003ePuroAir 400\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eLarger open spaces, ideal for larger residential or commercial spaces\u003c\/td\u003e\n\u003ctd\u003e2,000 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eWhere to Buy\u003c\/h3\u003e\n\u003cp\u003ePuroAir Air Purifier Filter Replacements are available on the \u003ca href=\"https:\/\/getpuroair.com\/\"\u003ePuroAir website\u003c\/a\u003e and on Amazon.\u003c\/p\u003e\n\u003ch3\u003eOur Mission\u003c\/h3\u003e\n\u003cp\u003eAt PuroAir, our mission is: \u003cstrong\u003e“Making clean, healthy indoor air accessible to everyone, everywhere.”\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe’re committed to transparency, innovation, and integrity in everything we do. We promise to:\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003eOffer higher quality air purification products\u003c\/li\u003e\n\u003cli\u003eLead advancements in air purification technology\u003c\/li\u003e\n\u003cli\u003ePromote environmentally sustainable practices\u003c\/li\u003e\n\u003cli\u003eSupport community health-focused initiatives\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eWe’re dedicated to providing clean air for everyone through both innovation and philanthropy. Learn more about our efforts on our \u003ca href=\"https:\/\/getpuroair.com\/pages\/giving-back\"\u003eGiving Back page\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003e100-Day Cleaner Air Guarantee\u003c\/h2\u003e\n\u003cp\u003eThe 100-Day Cleaner Air Guarantee is our 100% Refund Return Policy. If you are unsatisfied with your Purifier purchase from PuroAir.com for any reason, you have 100 days from the date of shipment to request a full refund, including shipping charges. Purifiers will not be eligible for a return after 100 days. You may also cancel any subsequent subscriptions at the time of return, as well. Learn more about our return policy here: \u003ca href=\"https:\/\/getpuroair.com\/policies\/refund-policy\"\u003e100-Day Cleaner Air Guarantee.\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"puroair-240-air-filter-replacement","title":"PuroAir 240 HEPA Replacement Filter","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cb id=\"docs-internal-guid-1fa7886b-7fff-c43a-cd85-6013e0f41ca8\"\u003e\u003cspan\u003eKeep your PuroAir 240 Air Purifier running at its best with the PuroAir 240 Replacement Filter. Cleaning up to 99.9% of pollutants, this HEPA filter features a three-layer system that tackles dust, allergens\u003csup\u003e4\u003c\/sup\u003e, smoke, and odors. Replace every 90 days for optimal air quality.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMaintain the exceptional performance of your PuroAir 240 Air Purifier with our premium PuroAir 240 Replacement Filter. Specifically designed for the PuroAir 240 model, this filter is essential for ensuring the superior air purification you expect. \u003c\/span\u003e\u003cspan\u003eIt cleans\u003c\/span\u003e\u003cspan\u003e up to 99.9% of indoor pollutants such as dust, pollen, pet dander, smoke and odors—so the air you breathe stays clean.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe Replacement Filter uses an advanced three-layer filtration system for comprehensive air purification. The pre-filter filters larger particles, such as dust and pet hair, helping to extend the life of the additional filters. The HEPA layer filters up to 99.9% of particles as small as 0.1 microns, significantly improving indoor air quality. Finally, the activated carbon layer helps to filter odors, smoke, and VOCs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIn accordance with EPA guidelines, we recommend replacing your air filter every 90 days to maintain the highest air quality. More frequent replacements may be necessary during increased pollution, such as wildfire season or significant renovations. Regular filter changes ensure your purifier provides a healthier environment, which can also enhance cognitive function and help reduce respiratory issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eOur commitment to clean air means \u003c\/span\u003e\u003cspan\u003eyou’ll get free same-day shipping*, a 100-day cleaner air guarantee, and a lifetime purifier warranty with an active filter subscription.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003csup\u003e4\u003c\/sup\u003eTested to remove Fel d 1 and pollen in an ISO 17025 certified lab.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003eFilters: Particulate matter (PM1, PM2.5, PM10) down to 0.1 µm, VOCs\u003csup\u003e5\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eReduces: Pet dander, smoke, pollen, allergens\u003csup\u003e3\u003c\/sup\u003e, dust, odors, contaminants\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003eDimensions: 8” x 7.9” x 6.5”\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003eWeight: 0.5 lbs\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PuroAir - Breathe Cleaner Air","offers":[{"title":"1 Pack","offer_id":48228899750134,"sku":"PURO-AIR-HEPA-14","price":54.0,"currency_code":"USD","in_stock":true},{"title":"2 Pack","offer_id":48228899782902,"sku":"PUROAIR-HEPA-14-2PACK","price":99.0,"currency_code":"USD","in_stock":true},{"title":"4 Pack","offer_id":48228899815670,"sku":"PURO-AIR-HEPA-14-4PACK","price":169.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/1845\/0678\/files\/pro-filter-custom.png?v=1762458506"},{"product_id":"puroair-400-filters-1","title":"PuroAir 400 HEPA Replacement Filter","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eEnsure your PuroAir 400 Air Purifier continues to deliver fresh, clean air with the PuroAir 400 Replacement Filter. This advanced HEPA filter tackles dust, allergens\u003csup\u003e4\u003c\/sup\u003e, and odors, maintaining peak performance. Replace every 90 days for optimal results.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eKeep your PuroAir 400 Air Purifier performing at its highest level with the PuroAir 400 Replacement Filter. Specially crafted for the PuroAir 400, this replacement filter is key to maintaining superior air purification. It effectively filters small particles, including dust, pollen, pet dander, smoke, and odors, ensuring the air in your home remains clean and fresh.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eThe filter’s three-layer system provides comprehensive air purification. The pre-filter filters larger debris like dust and pet hair, helping to extend the life of the other filters. The HEPA layer filters particles as small as 0.1 microns, improving indoor air quality. Finally, the activated carbon layer filters odors, smoke, and VOCs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAccording to EPA recommendations, replacing the filter every 90 days ensures optimal air quality and performance. However, more frequent replacements may be necessary in areas with higher pollution, such as during wildfire season. Regular filter changes also support a healthier living environment, promoting better cognitive function and reducing respiratory discomfort.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003ePuroAir is committed to delivering top-notch filtration solutions backed by scientific research. Our filters are designed and developed with the input of experts to provide superior air purification for your home. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEnjoy free same-day shipping*, a 100-day cleaner air guarantee, and a lifetime warranty on your air purifier when you subscribe to our filter replacement program. Our live customer service team is available to help 7 days a week.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003e\u003csup\u003e4\u003c\/sup\u003eTested to remove Fel d 1 and pollen in an ISO 17025 certified lab.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eTechnical Specifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eFilters: Particulate matter (PM1, PM2.5, PM10) down to 0.1 µm, VOCs\u003csup\u003e5\u003c\/sup\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eReduces: Pet dander, smoke, pollen, allergens\u003csup\u003e3\u003c\/sup\u003e, dust, odors, contaminants\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eDimensions: 16.7” x 12.2” x 2.2”\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" role=\"presentation\"\u003e\u003cspan\u003eWeight: 0.5 lbs\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4 class=\"whyspecial\"\u003e\u003cbr\u003e\u003c\/h4\u003e","brand":"PuroAir - Breathe Cleaner Air","offers":[{"title":"1 Pack","offer_id":48209430642934,"sku":"PUROAIR400-FILTER","price":69.0,"currency_code":"USD","in_stock":true},{"title":"2 Pack","offer_id":48209430675702,"sku":"PUROAIR400-FILTER-2PACK","price":132.0,"currency_code":"USD","in_stock":true},{"title":"4 Pack","offer_id":48209430708470,"sku":"PUROAIR400-FILTER-4PACK","price":252.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/1845\/0678\/files\/product400filter_14ee2a5b-ff60-4e90-b2f0-131c31431dfd.png?v=1762459888"},{"product_id":"puroair-130-air-filter-replacement","title":"PuroAir 130i HEPA Replacement Filter","description":"\u003cp dir=\"ltr\"\u003e\u003cstrong\u003eProduct Features and Specs:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003eDimensions\u003c\/span\u003e\u003cspan\u003e: \u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003eWeight\u003c\/span\u003e\u003cspan\u003e: \u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan\u003e3 Layers of Defense:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"2\"\u003e\n\u003cspan\u003ePre-Filter\u003c\/span\u003e\u003cspan\u003e: Screens large particles such as dust, pet hair, and lint\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"2\"\u003e\n\u003cspan\u003eHEPA Filter\u003c\/span\u003e\u003cspan\u003e: Cleans up to 99.9% of fine particles\u003csup\u003e3\u003c\/sup\u003e like pollen, pet dander, and dust\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"2\"\u003e\n\u003cspan\u003eActivated Carbon Filter\u003c\/span\u003e\u003cspan\u003e: Filters smoke, odors, and VOCs\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003eProduct Type:\u003c\/span\u003e\u003cspan\u003e Replacement Air Filter\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\u003cspan\u003eAir Filter Type: \u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli dir=\"ltr\" aria-level=\"2\"\u003e\u003cspan\u003eHEPA Filter\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"2\"\u003e\u003cspan\u003eActivated Carbon Filter\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003eRoom Coverage:\u003c\/span\u003e\u003cspan\u003e 600 sq ft\u003csup\u003e1\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003eReduces: \u003c\/span\u003e\u003cspan\u003ePet dander, smoke, pollen, allergens\u003c\/span\u003e\u003csup\u003e3\u003c\/sup\u003e\u003cspan\u003e, dust, odors, contaminants\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003eFilters:\u003c\/span\u003e\u003cspan\u003e Particulate matter (PM1, PM2.5, PM10) down to 0.1 µm, VOCs\u003csup\u003e5\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli dir=\"ltr\" aria-level=\"1\"\u003e\n\u003cspan\u003e\u003c\/span\u003eShipping: Free Shipping\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eMaintain unmatched performance of your PuroAir 130i Air Purifier with the PuroAir 130i Replacement Filter. Reducing up to 99.9% of pollutants, this high efficiency particle air filter features a three-layer system that filters dust, pollen, allergens\u003csup\u003e4\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e, smoke, and odors. Replace every 90 days for optimal results.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEnjoy the exceptional performance of your PuroAir 130i Air Purifier with our premium PuroAir 130i Replacement Filter. Specifically designed for the PuroAir 130i model, this filter is essential for ensuring the superior air purification you expect. The multi-layer filtration system ensures that even the smallest particles as small as 0.1 microns\u003csup\u003e3\u003c\/sup\u003e are filtered from the air, making it ideal for homes with allergies, pets, or smokers, as well as for people living in cities with high levels of air pollution.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWhen using the Wi-Fi enabled PuroAir 130i Air Purifier and connected mobile app, you’ll have access to important tools to keep your device running at its best. The PuroAir mobile app will also send automatic notifications when it's time to replace the filter, keeping your indoor air clean and healthy for all.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eEnjoy clean indoor air all the time by signing up for our Subscribe and Save program! This exclusive program will not only save you money on each replacement filter, but guarantee that you have a fresh filter every 90 days. It’s a win-win for clean air and convenience!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eIn accordance with EPA guidelines, we recommend replacing your air filter every 90 days to maintain the highest indoor air quality. More frequent replacements may be necessary during increased pollution, such as wildfire season or significant home renovations. Regular filter changes ensure your purifier provides a healthier environment, which can also enhance cognitive function and help reduce respiratory issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eAt PuroAir, our mission is to provide effective, data-driven filtration solutions for indoor spaces. Each filter is developed with advanced research and testing to give you high quality air purification in your home. PuroAir filters are California Air Resource Board Certified, and ISO Certified, ensuring unmatched performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eOur commitment to clean air means you’ll get free same-day shipping*, a 100-day cleaner air guarantee, and a lifetime purifier warranty with an active filter subscription. Breathe easy with PuroAir products, where scientific excellence meets everyday reliability.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4 dir=\"ltr\"\u003e\u003cspan\u003eHealth Benefits for the Whole Family\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp dir=\"ltr\"\u003e\u003cspan\u003eWhether you suffer from seasonal allergies, asthma, or simply want to ensure your indoor air quality is optimal, the PuroAir 130i Air Purifier helps create a healthier environment for everyone. The advanced filtration technology reduces harmful particles, while the smart features provide peace of mind, knowing that you have full control over your air quality—whenever and wherever you need it.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"PuroAir - Breathe Cleaner Air","offers":[{"title":"1 Pack","offer_id":48301672628470,"sku":"US-PA-130-F-1PK","price":37.0,"currency_code":"USD","in_stock":true},{"title":"2 Pack","offer_id":48301672661238,"sku":"US-PA-130-F-2PK","price":67.0,"currency_code":"USD","in_stock":true},{"title":"4 Pack","offer_id":48301672694006,"sku":"US-PA-130-F-4PK","price":127.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/1845\/0678\/files\/130_-_1_1.jpg?v=1755046913"},{"product_id":"puroair-100i-hepa-replacement-filter","title":"PuroAir 100i HEPA Replacement Filter","description":"\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003ePuroAir 100i Filter Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e3-Layer Filter:\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003ePre-Filter: Screens large particles such as dust, pet hair, and lint\u003c\/li\u003e\n\u003cli\u003eHEPA Filter: Cleans up to 99.9% of fine particles like pollen, pet dander, and dust\u003csup\u003e3\u003c\/sup\u003e\n\u003c\/li\u003e\n\u003cli\u003eCarbonTech™ Activated Carbon Filter: Filters smoke, odors¹\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003e550 sq ft coverage\u003cspan\u003e¹\u003c\/span\u003e in 60 minutes\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003cli aria-level=\"1\" dir=\"ltr\"\u003eUp to 99.9% filtration efficiency\u003csup\u003e3\u003c\/sup\u003e\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"ltr\"\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Replacement Air Filter\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e PuroAir 100i Smart Air Purifier\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eRoom Coverage:\u003c\/strong\u003e Up to 550 sq ft\u003cstrong\u003e \u003c\/strong\u003ein an hour¹\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eFilters: \u003c\/strong\u003eParticulate matter (PM1, PM2.5, PM10) down to 0.1 µm\u003csup\u003e5\u003c\/sup\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eReduces:\u003c\/strong\u003e Pet dander, smoke, pollen, allergens\u003csup\u003e3\u003c\/sup\u003e, dust, odors, contaminants\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eBrand:\u003c\/strong\u003e PuroAir\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eKeep your PuroAir 100i Air Purifier working at peak performance with the PuroAir 100i Replacement HEPA Filter. Designed with a three‑layer high‑efficiency system, it filters up to 99.9% of airborne pollutants, including dust, pollen, allergens, smoke, and household odors², so you can enjoy cleaner, fresher air every day. For the best results and consistently healthy indoor air, replace the filter every 90 days.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eMaximize the performance of your PuroAir 100i Air Purifier with the premium PuroAir 100i Replacement HEPA Filter. Designed exclusively for the 100i model, this essential filter delivers the superior air purification you rely on. Its advanced multi‑layer system filters particles as small as 0.1 microns, effectively reducing dust, pollen, pet dander, smoke, and odors\u003csup\u003e3\u003c\/sup\u003e. Perfect for households with allergies, pets, or smokers, and for anyone living in areas with high pollution, it helps create a cleaner, healthier indoor environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWhen using the Wi-Fi enabled PuroAir 100i Air Purifier and connected mobile app, you’ll have access to important tools that keep your device running at its best. The PuroAir mobile app will also send automatic notifications when it's time to replace the filter, keeping your indoor air clean and healthy for all.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eEnjoy clean indoor air all the time by signing up for our \u003ca href=\"https:\/\/getpuroair.com\/pages\/subscribe-and-save\" title=\"PuroAir Subscribe and Save\"\u003eSubscribe and Save\u003c\/a\u003e program! This exclusive program will not only save you money on each replacement filter, but guarantee that you have a fresh filter every 90 days. It’s a win-win for clean air and convenience!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIn accordance with EPA guidelines, we recommend replacing your air filter every 3 months, or 90 days, to maintain the highest indoor air quality. More frequent replacements may be necessary during times of increased pollution, such as wildfire season, those with pets, or when doing significant home renovations. Pet owners may also need to change the filter more often due to the buildup of dander and fur. Regular filter changes ensure your purifier provides a healthier environment, which can also enhance cognitive function and help reduce respiratory issues.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eAt PuroAir, our mission is to provide effective, data-driven filtration solutions for indoor spaces. Each filter is developed with advanced research and backed by science to give you high efficiency air purification in your home. PuroAir filters are energy efficient and meet DOE standards, California Air Resource Board Certified, and ISO Certified, ensuring unmatched performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOur commitment to clean air means you’ll get free same-day shipping, a 100-day cleaner air guarantee, and a lifetime purifier warranty with an active filter subscription. Enjoy the support of live customer service and take pride in knowing our products are proudly based in the USA. Breathe easy with PuroAir products, where scientific excellence meets everyday reliability.\u003c\/span\u003e\u003c\/p\u003e","brand":"PuroAir","offers":[{"title":"1 Pack","offer_id":49867624120566,"sku":"US-PA-100-F-1PK","price":35.0,"currency_code":"USD","in_stock":true},{"title":"2 Pack","offer_id":49867624153334,"sku":"US-PA-100-F-2PK","price":59.0,"currency_code":"USD","in_stock":true},{"title":"4 Pack","offer_id":49867624186102,"sku":"US-PA-100-F-4PK","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/1845\/0678\/files\/1Pack_Filter_94af6eec-dc9d-42a6-ac96-64731e5ff84a.jpg?v=1768504117"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/1845\/0678\/collections\/air-purifier-filter-replacement-guide.png?v=1769523288","url":"https:\/\/getpuroair.com\/collections\/air-purifier-filter-replacement-guide.oembed","provider":"PuroAir","version":"1.0","type":"link"}