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PuroAir air purifier filter
PuroAir 100i HEPA Replacement Filter
PuroAir 100i filter with branding and publication logos
Two PuroAir air purifier filters
Four PuroAir air purifier filters
PuroAir air purifier filter
PuroAir 100i HEPA Replacement Filter
PuroAir 100i filter with branding and publication logos
Two PuroAir air purifier filters
Four PuroAir air purifier filters
5.0
Rated 5.0 out of 5 stars
112 Reviews

PUROAIR 100i HEPA REPLACEMENT FILTER FOR PUROAIR 100i SMART PURIFIER

Regular price
$31.50
$35
Sale Sold out
+ Free Shipping
The PuroAir 100i Replacement Air Filter is designed to reduce airborne particles such as dust, pollen, pet dander, smoke, and odors improving indoor air quality with the small but powerful PuroAir 100i Wi-Fi Enabled Air Purifier.
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  • plus sign iconFilters up to 99.9% of pollutants
  • puroair lifetime warranty icon3 layers of filtration

Product Description

PuroAir 100i Filter Features

  • 3-Layer Filter:
    • Pre-Filter: Screens large particles such as dust, pet hair, and lint
    • HEPA Filter: Cleans up to 99.9% of fine particles like pollen, pet dander, and dust3
    • CarbonTech™ Activated Carbon Filter: Filters smoke, odors¹
  • 550 sq ft coverage¹ in 60 minutes
  • Up to 99.9% filtration efficiency3

Specifications

  • Product Type: Replacement Air Filter
  • Compatibility: PuroAir 100i Smart Air Purifier
  • Room Coverage: Up to 550 sq ft in an hour¹
  • Filters: Particulate matter (PM1, PM2.5, PM10) down to 0.1 µm5
  • Reduces: Pet dander, smoke, pollen, allergens3, dust, odors, contaminants
  • Brand: PuroAir

Keep 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.

Maximize 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 odors3. 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.

When 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.

Enjoy 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!

In 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.

At 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.

Our 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.

Benefits You Can Feel

Activated Carbon Layer

At the center of the filter is its CarbonTech™ activated carbon filter, which has a highly porous surface that purifies odors and gases. This makes it an effective barrier against smoke, cooking odors, pet smells, and other household or environmental pollutants.

HEPA Filter Layer

The HEPA rated filter layer blocks fine air particles down to 0.1 micron.

Pre-Filter Layer

Filters larger air pollutants like dust, pollen, pet hair, carpet fibers and other visible pollutants.

Odor

One of the most notable benefits of carbon-activated PuroAir Filter Replacements is their ability to reduce stubborn odors, such as those caused by cooking, pets, and smoke¹. This can significantly improve the comfort and freshness of indoor spaces.

Ideal for Sensitive Environments

These home air filters are ideal for households with allergy sufferers or individuals sensitive to air quality. They are also highly effective in environments like offices, and restaurants, where air purity is essential.

Quiet Operation

The 100i air filter is designed to allow for smooth airflow, maintaining optimal air circulation without adding noise or strain to the purifier. It also includes a Sleep Mode to provide a soothing, whisper-quiet environment when needed the most.

Easy Installation and Maintenance

The 100i carbon-activated HEPA filter is designed to fit perfectly in the PuroAir 100i Air Purifier. It is easy to install and replace in minutes!

What's In the Box?

1 x 100i HEPA & Activated Carbon Air Filter Replacement

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Backed by our 100 Day Cleaner Air Guarantee

+ FREE 2 YEAR WARRANTY

We're absolutely confident that you'll adore your PuroAir! With our science-backed air purifiers and medical-grade filters, we assure you that your home or office's air quality will be noticeably cleaner. And if by any chance you're not completely satisfied, we'll refund your money hassle-free. No questions asked! So, breathe easy knowing you're in good hands with PuroAir.

THREE LAYERS OF POWERFUL DEFENSE

Pre-filter: Filters larger particles like dust, hair, pollen, carpet fibers, and other visible debris.

High Performance Filter: Filters up to 99.9% of air pollutants including, allergens, pet dander and dust.4

Activated Carbon Layer: Proprietary blend of activated carbon designed to filter odors, smoke, and gases.1

THREE LAYERS OF POWERFUL DEFENSE

PuroAir Captures Common Household Pollutants Like These:

Allergens

Allergens

Sources:

Furry pets, dust mites

consequences:
  • Asthma
  • Reduced lung function
  • Cough
Volatile Organic Compounds (VOCs)

Volatile Organic Compounds (VOCs)

Sources:

Cigarette smoke, recently dry-cleaned cloths, room deodorizers, paints, carpets

consequences:
  • Bronchial hyper-reactivity
  • Asthma
Smoke

Smoke

Sources:

Tobacco smoke, vaping, incense, wildfires

consequences:
  • Premature mortality
  • Lung cancer
  • Coronary artery disease
  • Respiratory illness
Mold Spores

Mold Spores

Sources:

Unattended plumbing leaks, leaks in building fabric, hidden food spills,

consequences:
  • Upper respiratory symptoms
  • Cough
  • Wheezing
  • Asthma
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How to replace your filter

Free Same Day Shipping

100-Day Cleaner Air Guarantee

Lifetime Warranty with Subscription

Live Customer Support

In Partnership with the American Lung Association

When you can’t breathe, nothing else matters®.

Dedicated to making cleaner air more accessible in homes and communities

Supporting research and education that drive real impact

Collaborating to raise awareness about the connection between air quality and lung health

Reinforcing our shared mission to protect every breath, everywhere

5.0
Rated 5.0 out of 5 stars
Based on 112 reviews
Customers Talked About
112 reviews
  • EP
    Elwanda P.
    Verified Reviewer
    Reviewing
    PuroAir 100i Smart HEPA Air Purifier
    I recommend this product
    Room Usage Home office
    Air Quality Concerns Dust, Odors, Mold, Allergies
    Rated 5 out of 5 stars
    4 days ago
    ⭐⭐⭐⭐⭐

    ⭐⭐⭐⭐⭐

  • GV
    Glenda V.
    Verified Reviewer
    Reviewing
    PuroAir 100i Smart HEPA Air Purifier
    I recommend this product
    Room Usage Bathroom, Living room
    Air Quality Concerns Allergies, Odors
    Rated 5 out of 5 stars
    4 days ago
    Allergy season must

    During allergy season our living room used to be miserable. Since running this purifier daily, the air feels noticeably cleaner and I’m not constantly sneezing

  • AP
    Abiageal P.
    Verified Reviewer
    Reviewing
    PuroAir 100i Smart HEPA Air Purifier
    I recommend this product
    Rated 5 out of 5 stars
    4 days ago
    So far so good

    So far so good and my wife and I love ours if anything changes I will report back.

  • DB
    Daron B.
    Verified Reviewer
    Reviewing
    PuroAir 100i Smart HEPA Air Purifier
    I recommend this product
    Rated 5 out of 5 stars
    4 weeks ago
    Daily use

    I run it daily and notice a big difference.

  • DM
    Diego M.
    Verified Reviewer
    Reviewing
    PuroAir 100i Smart HEPA Air Purifier
    I recommend this product
    Room Usage Living room
    Air Quality Concerns Pet hair and/or dander
    Rated 5 out of 5 stars
    1 week ago
    Good for cat owners

    Definitely a wise investment for cat owners

FAQ's