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PuroAir

PuroAir 400 HEPA Air Purifier for Home Large Rooms - Covers 2,000 Sq Ft - Filters Up to 99.9% of Pollutants, Smoke, Pollen, Dust, and VOCs - Quiet HEPA Air Filter - Air Purifiers for Bedroom

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Availability: In Stock.
Fulfilled by Amazon
Arrives Friday, May 29
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Size: 400


Features

  • CLEANER AIR IN MINUTES: PuroAir is proven to filter the pollutants lurking in your homes air. This large room air purifier cleans rooms up to 2,000 sq ft in one hour.* Breathe clean, crisp air and kiss your allergies goodbye! (Based on independent testing in an ISO 17025 certified lab and typical residential rooms ventilation rates, 2025.)
  • POWERFUL AIR FILTER: PuroAir HEPA air purifiers for home feature a powerful 3-layer filtration systema pre-filter, HEPA filter, and activated carbonthat filter up to 99.9% of pollutants, including dust, pollen, smoke, pet dander, and VOCs. PuroAir air filters can filter particles 700X smaller than the size of a human hair.* (Based on filter performance standards and independent testing on inanimate particles in an ISO 17025 laboratory, 2024.)
  • BACKED BY SCIENCE: Lab tested and studied to filter the most common household pollutants with ease. Better filtration means improved allergy symptoms and improved sleep quality.* Certified by CARB, ETL, ISO, and UL. (Based on SleepScore's independent lab testing, 2024)
  • QUIETLY CLEANS 24/7: A smart particle sensor monitors air quality and increases power if polluted air is detected. Set it and forget it! Perfect air purifiers for bedroom, with a built in sleep mode that operates quietly. Designed to be used 24/7.
  • 2 YEAR RISK-FREE WARRANTY: We stand by our products and their performance, which is why 500,000+ families trust PuroAir to keep their air clean. Have a problem? Our team is here to make it right! Proudly based in the USA.

Product Dimensions ‏ : ‎ 17.5 x 10.6 x 12.5 inches; 14.73 Pounds


Item model number ‏ : ‎ PuroAir 400


Date First Available ‏ : ‎ April 29, 2023


Manufacturer ‏ : ‎ PuroAir


Best Sellers Rank: #1,119 in Home & Kitchen (See Top 100 in Home & Kitchen) #5 in HEPA Filter Air Purifiers


#5 in HEPA Filter Air Purifiers:


Customer Reviews: 4.6 4.6 out of 5 stars (17,837)


Power Source: Corded Electric


Control Method: Push Button


Filter Type: HEPA with Activated Carbon


Floor Area: 2000 Square Feet


Noise Level: 35 Decibels


Particle Retention Size: 0.1 Micron


Controller Type: Button Control


Wattage: 80 watts


Contaminant Filtration Capability: Cigarette Smoke, Dust, Odors, Pet Dander, Pet Hair, Pollen, Volatile Organic Compounds (VOCs), Wildfire Smoke


Special Features: Automatic Air Quality Sensor and Indicator, Child Safety Lock, Filter Replacement Indicator, Quiet Sleep Mode, Timer


Filter Class: HEPA


Brand Name: PuroAir


Model Number: PuroAir 400


UPC: 860009797505


Edition: PuroAir 400


Manufacturer: PuroAir


Warranty Description: 2 Year Manufacturer Warranty


Part Number: PA400


Included Components: 1


Item Type Name: PuroAir 400 HEPA 14 Air Purifier for Large Rooms - Covers 2,145 Sq Ft - Air Purifier for Allergies and Pets - Filters 99.99% of Pet Dander, Smoke, Allergens, Dust, Mold, Odors


Unit Count: 1.0 Count


Item Dimensions D x W x H: 8.1"D x 14.4"W x 21.5"H


Item Weight: 14.7 Pounds


Specification Met: ETL Certified, UL Certified, CARB Certified, and ISO


Color: Black


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, May 29

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Works for My Needs
Size: 400
Easy to use. Simple instructions on removing plastic from filter prior to use. Easy to understand instructions. The air quality in our home was ok, but now it is even better. Its allergy season in north Florida right now and running this purifier must be removing the infiltrating pine and oak pollen because we are breathing easier without congestion in the morning when we wake up. It is well worth the money to me. It runs quietly and automatically increases speed when necessary. Easy to move to different rooms in your home since it is on casters, but is lightweight with a carrying slot too. No complaints. Been using for a week and breathing easier. ... show more
Reviewed in the United States on March 20, 2026 by Jackie
    • Quiet and Perfect!
Size: 240
Works great and you can tell a difference in air quality. Love the "auto" mode where you can leave it on 24x7 and the machine reacts accordingly when it needs to ramp up the air cleaning to get back to a green status light!
Reviewed in the United States on April 15, 2026 by Hobbs9
    • Very quiet and easy to set up!
Size: 240
I purchased this unit and place it in the living room. The unit was very easy to set up, just follow the instructions. The noise is non existent and it has been working great. I have only had the unit less than a week, so we shall see in about a month. The air quality is good. The dust removal is working (I dusted before setting up the unit and so far no dust). The timer for each unit is manually adjusted by me, which I do not have a problem with because I work from home. You may run the unit in increments of 2 hours, up to 8 hours. It automatically shutdown after your selected time. The air freshness is definitely noticeable. We no longer wake up with stuffy noses and I noticed not a lot sneezing. So far, I am a fan of this air purifier. The area where the purifier is about 800 sq. ft. ... show more
Reviewed in the United States on March 26, 2026 by JBART
    • PuroAir
Size: 400
It is a good purifier but it's kinda noisy...
Reviewed in the United States on April 17, 2026 by Thanh Nguyen
    • quality product
Size: 400
PuroAir 400 is a great product. I have had it for two months and I am completely satisfied with the quality. It is extremely quiet. I have quite a large room, 30' x 30' and 20' ceilings that open into a loft. I feel the dust has been reduced and the air smells cleaner. I have the ability to keeps it off the walls which helps with airflow. I keep the setting on automatic however it will change to high when cooking fish or something smoky. It seems to help remove the odor quickly. The sensor will automatically change should a situation arise... nice feature! I do not have the need for the sleep mode therefore I cannot comment on its effectiveness. I understand the filters are expensive however the health of my family is worth the cost. ... show more
Reviewed in the United States on March 28, 2026 by sedley life
    • Awesome
Size: 240 (2 Pack)
Absolutely love this purifier. You will be surprised at the amount of dust you have in your home after using this. They are pretty big size too which means it might he hard to find a spot for it. Its quiet, it has different settings to choose from like how high you want it to run which means it sucks up more but its less quiet. You can also choose to have it run only when it senses something to purify in the room. Very effective in my opinion and removes any odors from the room as well ... show more
Reviewed in the United States on April 16, 2026 by ErinM
    • Efficiency, easy set up and quiet
Size: 240
We are so please with this purifier. This is our first purchase of any type of purifier system. It has helped with the heavy pollen and our coming in and outs during the allergy season. We both have allergies this time of year and we are usually miserable. This purifier has helped immensely. It is quiet and effective. We are happy customers! ... show more
Reviewed in the United States on April 5, 2026 by Joni G
    • Good Sized Air Purifier That is Not Noisy
Size: 130i
Review Image by J Cra
Review Image by J Cra
Review Image by J Cra
Great air purifier because it is compact and aesthetically pleasing and not overly loud. There is an easy to use app that you can control the settings from and can see the filter life percentage. If you don't want to use the app, you can control the settings from the top of the purifier. The filter is easy to remove for when replacement is needed and the power cord is a decent length to reach outlets that might not be as accessible. There are multiple speed settings and even a sleep mode setting if you need quiet to sleep. ... show more
Reviewed in the United States on April 20, 2026 by J Cra

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