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BLUEAIR Air Purifier Large Room, Air Cleaner for Dust Pet Dander Smoke Mold Pollen Bacteria Virus Allergen, Odor Removal, for Home Bedroom Living Room, Washable Pre Filter, HEPASilent, Blue 211+ Auto

  • Based on 4,259 reviews
Condition: Used - Very Good
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Style: Large Room


Features

  • AUTO ADJUSTS SO YOU CAN REST EASY: One touch auto mode uses a particle sensor to monitor pollutant levels and adjusts fan to ensure optimal air quality; LED indicator displays air quality status as excellent (blue), moderate (orange) or polluted (red)
  • CLEAN AIR IN MINUTES: Blueairs HEPASilent dual filtration delivers up to 45% faster cleaning and up to 67% less noise than traditional HEPA filtration alone; Quickly cleans 550sqft large room in about 12.5 min or up to 2640sqft XL space in 60min, on high
  • RATED BEST FOR LOWEST ANNUAL ENERGY CONSUMPTION: Quieter (23 dB) than whisper on low; ENERGY STAR rated - uses less energy (4W) than an LED lightbulb on low so its kind to your wallet and the planet
  • REMOVES 99.99% OF COMMON ALLERGENS: Helps reduce allergens and pollutants that trigger allergy and asthma symptoms
  • REMOVES ODOR & PARTICLES DOWN TO 0.1 MICRON: Ideal for smoke & smog during wildfire season; Removes 99.97% of airborne particles like smoke, dust, viruses and pet dander, while the carbon filter traps light household odors from smoking, pets and cooking
  • MOST AWARDED AIR PURIFIER BRAND IN THE US: Blue Pure 211+ Auto has won Good Housekeeping 10 Best Air Purifiers of 2021, Best Overall Air Purifier
  • INDEPENDENTLY TESTED FOR PERFORMANCE & SAFETY, ZERO OZONE: AHAM Verifide for CADR; Ozone Safety Standards Certified by CARB; Zero Ozone Verified (<5 ppb) by Intertek Sustainability Program; Trusted Education Partner of British Health Professional Academy
  • GENUINE FILTERS FOR OPTIMAL PERFORMANCE: Replace your filter every 6 months to ensure proper functionality & only use genuine Blueair filters; Shop 211+ Auto replacement filter: B08WWS6XSG; Upgrade to SmokeBlock filter for enhanced removal: B0B453ZDZ6
  • Regulatory Model Number : 3631101000

Description

"Blue Pure 211+ Auto air purifier quickly cleans 550sqft large room in about 12.5 min or up to 2640sqft extra-large space in 60min, on high. Only Blueair air purifiers use HEPASilent™ technology, delivering maximum filtration with minimum noise. Combining mechanical filtration with electrostatic charging of particles produces clean air up to 45% faster with up to 67% less noise than traditional HEPA filtration alone. Delivers high performance with automated one-button control in a lightweight, compact package and includes a washable, pre-filter in Arctic Trail (Gray). It can also be customized in other Swedish- inspired pre-filter colors that are sold separately. Carbon filter traps light household odors from smoking, pets, cooking, and more. Award-winning, sleek, Swedish design compliments your aesthetic while working hard to clean your air so you can place where it will be most effective at capturing airborne particles & odors without worrying about it cramping your style. Independently evaluated for safety standards and third-party tested for performance as part of the AHAM Verifide® Program for air cleaners, this air purifier has a Clean Air Delivery Rate (CADR) of 353 for fine smoke particles, 380 for pollen particles, and 347 for dust particles.CLEAN AIR IN A MATTER OF MINUTES: Comparing CADR performance of Blueair models vs same models with only H13 HEPA. At similar CADRs, Blueair models achieved less noise than same models with only H13 HEPA. Noise refers to the dB(A) difference in acoustic power. Tested on Blue Pure 211+ Auto, DustMagnet™ 5400i, Protect 7400 series. Performance may vary. According to AHAM, air changes per hour (ACH) is the measure of the outside air volume added to a space divided by the volume of that space over a set amount of time.REMOVES ODOR & PARTICLES DOWN TO 0.1 MICRON: Blueair models with HEPASilent's mechanical and electrostatic filtration produced higher CADR, lower noise, and had lower energy consumption vs. the same models with only mechanical filtration (H13 filter). Tested on PM2.5 (0.1 - 2.5 μm) up to 90min; Tested on Influenza A (H1N1) with a minimum reduction rate of 99.99% in 60min.REMOVES 99.99% OF COMMON ALLERGENS: Tested on pollen particles 5.048 - 11.14 μm on Blue Auto, DustMagnet™ and Protect.MOST AWARDED AIR PURIFIER BRAND IN THE US: Based on survey of over 50 awards, accolades, and recommendations issued by independent consumer associations, media publications, and industry competitions from January 1, 2022, through August 16th, 2022, for products sold in the US by top 10 air purifier brands according to NPD Group Retail Tracking Service, Small Appliances, U.S. sales dollars June 2022 YTD.BACTERIA, VIRUS & MOLD SPORE REMOVAL: Tested to reduce E.coli and Influenza A (H1N1) with minimum reduction rate of 99.9% in 60min; Tested on A.niger with minimum reduction rate of 99.9% in 60min."

Color: White


Brand: BLUEAIR


Product Dimensions: 13"D x 13"W x 20"H


Power Source: Corded Electric


Item Weight: 3.33 Kilograms


Power Source: Corded Electric


Control Method: Touch


Filter Type: Activated Carbon


Floor Area: 550 Square Feet


Noise Level: 23 Decibels


Particle Retention Size: 0.1 Micron


Controller Type: Button Control


Contaminant Filtration Capability: True


Special Features: Corded


Smart Home Compatibility: Not Smart Home Compatible


Filter Class: Activated Carbon, Particle


Item Dimensions D x W x H: 13"D x 13"W x 20"H


Item Weight: 3.33 Kilograms


Color: White


Brand Name: BLUEAIR


Model Number: 3631101000


UPC: 689122019642 689122018904 689122016214


Manufacturer: Blueair


Warranty Description: 1-year limited warranty. Extend warranty to up to 2-years with product registration on Blueair.com.


Part Number: 106237


Included Components: Air Purifier, Combination Particle + Carbon filter, Fabric Pre-filter in Arctic Trail, User manual


Item Type Name: Air Purifier


Unit Count: 1.0 Count


Specification Met: AHAM Certified, CARB Certified, Energy Star Certified


Frequently asked questions

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

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Top Amazon Reviews


  • Clean Air in House
Style: Large Room
I have purchased four of these air purifiers and they work great. Very quiet in normal setting but a little louder when they auto-switch into overdrive when air quality diminishes. Filters are a little expensive but last at least six months between changes.
Reviewed in the United States on June 4, 2026 by DJ

  • Nice air cleaner
Style: Large Room
I had a Honeywell before, and it was so much noisier and bigger. This unit fits well in the room, and seems not to blow debris around as much as the other air cleaner I had. I do get a bit confused as sometimes the change filter iight flashes but goes off, so not sure and need to investigate further. I purchased a second one of these. The change filter light comes on frequently, but I just ignore it and make sure that the filter which is an outer covering isn’t terribly dirty. If it is, I take it off, wash it and then put a clean one on. It’s a nice machine. Very quiet at night easy to sleep with and I’m glad I have it. ... show more
Reviewed in the United States on September 29, 2022 by socialmom

  • Great air purifier for a large room
Style: Large Room
This is a great air purifier. It comes with an outer cover that sucks up a lot of the larger particles. You can wash it and they come out. This helps keep the inner filter active for longer. Normally the larger particles block an air filter quickly, reducing its lifespan. It is not completely silent, but if kept in one of the lower settings it is barely noticeable. It is rather noticeable in its fastest setting. I have two of these in large rooms and they do a great job. ... show more
Reviewed in the United States on April 13, 2026 by Mike

  • Nice looking unit, quiet, love the auto mode - got rid of wildfire smoke from our house
Style: Large Room
I'm in California and this past summer was bad in terms of wildfires and it's impact on our air quality. It's the first time where the smoke affected us INSIDE our house. It was so bad where we were that it was a thick fog of smoke at ground level for a week. We're working from home with kids and a dog. And there were days when we could see the smoke inside the house, meaning we could see haze inside. My wife was coughing and sneezing. I ended up buying two of these units, one for each floor of our house during the day and used one in our bedroom during the night. The auto mode feature is pretty cool and the sensor is pretty sensitive. Basically, it autodetects the air quality and adjust the fan speed accordingly. It not only detected smoke but it detected odors like fried fish that we made one night, which is pretty cool So it's good to remove cooking odors as well. I did test it out on a smoky day and it did detect poor air quality and upped the fan. Within 30 minutes it cleared out the air. Yes, these purifiers DO make a notable difference. They are not a gimmick. On the lowest fan setting they are VERY quiet and pretty unnoticeable. We had one in our bedroom on auto mode and it was whisper quiet!!! On the higher speeds the noise is more noticeable but not that bad. It definitely can move alot of air and I trust the sq. ft. rating. It can probably handle larger to be honest. Lastly, I like the nice touch sensitive touch pad with indicator lights to adjust fan speed and turn the unit on. It's pretty cool and futuristic. The CON... as with many reviewers, I can confirm there is a weird chemical like odor from the purifier itself. I think it's from the filter. After awhile you don't notice it but it is there. It's not super strong but noticeable. It's also pretty expensive. I'm sure there are other cheaper and maybe better options. I bought these in a rush as availability of other purifiers at the time was very little. We are happy with them overall and will likely continue to use them. They are a nice small form factor and fit well with our decor. ... show more
Reviewed in the United States on January 2, 2022 by Kendoso

  • Form and function! Form and function!
This is the second BlueAir air purifier I've purchased, and I absolutely love them. I use this one in my living/dining room, and I have it normally set on auto. It is whisper quiet when the air is clean, and still fairly quiet on the next level, only getting loud but still not unbearable on the highest setting when it is cleaning the air. I have a small kitchen so anytime we cook anything the smell inevitably fills the dining and living room. This air purifier then immediately kicks into high gear and within an hour cleans the air. Very efficient in that regard. It also does an excellent job of reducing dust, as much less dust accumulates on my furniture now. While I can say for a fact if that will help with allergy relief since fortunately I don't suffer from it, I assume less dust helps. While the air purifier is very light weight, it still feels very durable. It also looks great anywhere in the room, seamlessly blending into surrounding furniture unlike other air purifiers, and isn't too big or too small so can really fit anywhere. I'll definitely be purchasing more purifiers from this company for other rooms. ... show more
Reviewed in the United States on May 1, 2024 Reviewed in the United States on May 1, 2024 by Sergio

  • Quiet, brilliant design, energy smart, too!
Style: Large Room
First, a general rave about this brand: For all of my adult life, I've had air purifiers of all kinds due to seriously bad allergies. The BlueAir Blue series are the ONLY ones that I've had that are easy to clean. I had a smaller BlueAir Blue 411 for years in a small bedroom that was great! With other brands, the expensive pre-filters either had to be thrown away when they got dirty, or I had to resort to using a toothbrush to clean the plastic framework that they were a part of. I admit that because of these annoying issues, I replaced or cleaned them less often than I was supposed to. With the Blue series, you just slide off the fabric pre-filter (it's a lot like sliding off a sock), and then throw it in the washing machine. A clean pre-filter captures the larger stuff like animal hair and dust, extending the lifespan of the main filter. A clean one therefore saves you money in the long run because you won't have to replace the main filter as often. More than anything, an air purifier that has a dirty filter probably doesn't do anybody much good, regardless of the specifications on the box. Secondly, I bought this particular model because of its capacity, air quality indicator, and because it uses much less energy than other air purifiers (only 4-38 watts). I keep it running 24/7 in a large bedroom, so energy use and noise are important. When it's in Auto mode, it comes on only when its sensors detect particles in the air, and triggering the air quality indicator LED to subtly let you know. When it's in Night mode, all of the lights on the unit turn off, it's whisper quiet, and the fan is on Low. It also has an Everyday mode (It's equivalent to a Medium setting), and a Boost mode (a High setting). It does an impressive job of cleaning the air, as well. My sinuses really appreciate it!!! ... show more
Reviewed in the United States on May 11, 2022 by Coastalcamper

  • Stopped turning on after 10 months
Style: Large Room
I’m coming back and updating my review much later. I’m actually incredibly pleased with how they handled this purifier stopping. They sent out a new one and had me box of the one that quit in the same box. I contacted them directly, not through Amazon. They covered shipping and everything. It was painless and their customer service was incredibly helpful the entire process. The new one has worked wonderfully and we love it. I purchased a different 211 about 5 years ago and loved it. It’s been running daily for the entire time. So when we needed a second one for my kids room due to allergies I naturally decided to get a second one for the ease of switching out prefilters etc. This worked great until it just stopped turning on. I have kept it clean, vacuumed off the dust from the top regularly, changed prefilters regularly and it just stopped. I’ve reached out to customer service to see if I can get it replaced because for the price of this unit it should *for sure* last longer than 10 months. I’m just glad it decided to bite the dust before the warranty was up and not days after like most things these days. Will up date when company offers a solution. Meanwhile my kid isn’t sleeping because of such severe congestion. Hoping to get a solution fast. ... show more
Reviewed in the United States on April 16, 2022 by M. Holmquist

  • Misleading. Worse than non-auto. HEPASilent isn't HEPA.
Style: Large Room
Was happy with the older 211, which worked reasonably well. On low the filter moves almost no air - the setting is effectively useless. Auto uses a speed that seems to be even lower most of the time making it useless. Medium is low but less quiet than the lowest useful setting on the 211. High works well and is not quiet. The pre-filter is a coarse cloth wrapped around the unit and isn't as effective as most other pre-filters. The carbon depletes before the rest of the filter but cannot be changed independently. Having looked more carefully at the fine print this product is misleading. First of all it isn't HEPA. It makes a lot of 99.97% claims on the page with an * next to them. Searching for the * yields: *Tested on E.coli, Influenza A (H1N1), A.niger with minimum reduction of 99.9% in 60min I don't know how 99.9 is being used to claim 99.97. But they do say: "Are Blueair filters HEPA? No, Blueair filters are less dense than traditional HEPA filters, allowing our air purifiers to be quieter and more energy-efficient. Instead of HEPA filters, we use a combination of electrostatic and mechanical filtration that we call HEPASilent™ technology to achieve the same level of filtration efficiency - with less energy and noise." While never unambiguously claiming to meet much less to have been independently tested to a HEPA 99.97% filtration. Given the construction of the filter (no sealing between the paper filter and the plastic frame) there will be some air bypass thus making these claims suspect. I am sorry I bought a few of these and am in the process of replacing them with real HEPA filters. ... show more
Reviewed in the United States on March 19, 2024 by Greg

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