The Air Purifier Everyone’s Talking About
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Why Does Everyone Love PuroAir?
Everyday life brings allergens, dust, and odors into your home. But PuroAir helps you clear the air so you can breathe easier and feel better.
Reduces Allergy Symptoms 2
Tired of sneezing, coughing, and itchy, watery eyes? PuroAir purifiers filter pollen, pet dander, and dust mites so you can enjoy your home without the sniffles.*
Reduces Pet Hair Dander 4
We love our furry friends but not the hair, dander, and smells that come with them. PuroAir helps keep the air fresh, even with a shedding pup or a litter box nearby.
Reduces Dust 3
No one loves dusting every day. Our filters catch airborne dust and particles, so they don’t settle on your furniture (or in your lungs).
Improves Sleep 2
Better air, better sleep. Clean air helps you breathe easier at night, so you wake up feeling refreshed.*
Filters Smoke 3
Whether it’s wildfire smoke, cooking fumes, or a lingering smell from past smoke, PuroAir helps clear the air so your home smells as clean as it feels.
Fights Odors & More 3
From last night’s dinner to musty rooms, bad smells stick around. PuroAir helps fight odors so your home always smells fresh.


Say Goodbye to Allergies,
Hello to Restful Sleep
Improved Sleep & Allergies2
No invasive treatments. No gimmicks.
Decrease in Itchy Nose & Eyes2
Fewer allergy flare-ups and less irritation.
Satisfaction With Weekly Sleep2
Clean air = better sleep.
Engineered for Maximum Purification
Shop PurifiersFilter out Pollutants3
Filters out airborne particles like dust, pet dander, and allergens before they spread.
Reduce Odors & Irritants5
Activated carbon filtration can help reduce odors, smoke, and airborne pollutants for fresher air.
Purify & Circulate3
Releases clean, purified air back into your space—improving air quality effortlessly.
PuroAir 240
PuroAir 400
What’s Polluting Your Air?
Indoor air can be 3–5 times more polluted than the air outside. Let’s break down what’s causing it and how it could be affecting your health.
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FAQ's
What is an air purifier and what does it do? +
Devices that filter airborne particles3 like pollen, mold and dust, and some gases from the indoor air are interchangeably called air cleaners, air scrubbers, and air purifiers. Air purifiers work by intaking polluted air, pulling it through a three-layer filtration system, and then pushing clean air back into your living space.
PuroAir air purifiers automatically filter out allergens4, dust, pollen, smoke and everything you don’t want to inhale. Simply place the air purifier in a central location, plug it in and begin to enjoy clean, healthy air!
How do I choose the right air purifier for my home? +
Choosing the best air purifier for your home is essential for getting the best results. PuroAir offers two different sizes to choose from:
- PuroAir 240 HEPA Air Purifier – Perfect for small to medium sized rooms and indoor spaces up to 1,000 sq ft1.
- PuroAir 400 HEPA Air Purifier – Designed for large homes and indoor areas up to 2,000 sq ft1.
Need more coverage? Shop our Whole Home Bundle and Whole Home Plus Bundle for as much as 4,000 sq ft1 of clean air coverage!
Do air purifiers work with the windows open? +
Air purifiers are still effective with open windows, although their efficiency may be decreased. The air purifier will keep filtering the room's air, but its effectiveness is reduced by outside pollution, like pollen or dust, entering through the open window.
How often do I need to replace the filter in my air purifier? +
While HEPA filters are stronger than most other air filters, experts recommend that they are replaced every 3–4 months to ensure efficiency and effectiveness. PuroAir air purifiers include an indicator that will inform the user when it’s time to replace the filter after 90 days.
Take the inconvenience out of maintenance schedules by enrolling in our Subscribe and Save program. Get up to 27% off replacement filters, delivered every 3 months, and a lifetime warranty on your purifier.
Are air purifiers effective with smoke? +
Yes, PuroAir air purifiers are effective at filtering smoke from indoor air. The filter in your PuroAir air purifier includes a HEPA (High-Efficiency Particulate Air) layer that is designed to filter up to 99.9% of particles as small as 0.1 microns3, which includes most smoke particles3.
PuroAir air purifiers are strong components against cigarette smoke, wildfire smoke, and wood fireplace smoke. The HEPA filter reduces fine particles3, and the activated carbon filter layer can help filter out the associated odors.
Learn more with this helpful article: How Air Purifiers Combat Cigarette Smoke.
Do air purifiers help with dust? +
Yes, PuroAir air purifiers are designed to filter out dust and other airborne pollutants with their powerful air flow and triple-layer HEPA filters. They work by drawing in air and passing it through the pre-filter screen that traps dust and other larger particles3. The filtered air is then released back into the room, resulting in cleaner air and less dust settling on surfaces.
Where should I place my air purifier? +
For the best air flow and filtration, we recommend placing your air purifier at least 8 inches from the wall and any obstructions. The PuroAir 240 and 400 air purifiers intake air from 360°, so make sure to have plenty of room around the entire air cleaning unit.
You can also elevate the air cleaner to boost efficiency. In rooms that you primarily sit, like a living room, the machine can be lower to the ground. But in rooms that you mostly stand, an elevated air purifier tends to be more effective.
How noisy are air purifiers? +
PuroAir Air Purifiers are known for their very quiet noise output compared to other brands' air purifiers. Some factors that impact the noise level of air purifiers are fan speed, filter material and thickness, and placement of the machine.
- 240 Air Purifier decibel rating: Low: 22 dBs, High: 48 dBs
- 400 Air Purifier decibel rating: Low: 35 dBs, High: 60 dBs
Do air purifiers help with allergies? +
Yes, PuroAir air purifiers are great for people with allergies. By filtering out common allergens4 like pollen, dust mites, mold spores, and pet dander, it provides cleaner air and may reduce allergy symptoms.
Learn how PuroAir Air Purifiers can help fight indoor allergies with this expert article: Understanding the Role of Air Purifiers in Managing Allergies.
Can air purifiers improve my sleep? +
A recent study by SleepScore Labs found that the PuroAir 240 was associated with improvements in deep sleep and fewer awakenings during the night among adults reporting allergies. The study also showed additional improvements in self-reported outcomes, such as increases in perceived sleep quality and feeling well-rested, as well as reductions in the perceived severity of allergy symptoms.2
Take a look at the SleepScore Lab Report here: SleepScore Labs PuroAir Report
Do air purifiers help with pet smells, pet hair and pet dander? +
Yes, PuroAir HEPA Air Purifiers are highly effective at filtering pet dander and other allergens4. The combination of the HEPA filter and activated carbon filter helps capture pet hair, dander, and odors from your home, making them ideal for pet owners.
Learn how PuroAir Purifiers can fight off pet odors: Say Goodbye to Pet Odors in Your Home
Discover the 3 top allergens in your home: Top 3 Hidden Allergens in Your Home
If you have a pet, this must-read article will explain the 5 signs that an air purifier is needed in your home: 5 Signs You Need an Air Purifier for Pet Allergies