
Blueair - Blue 211+ Auto
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Reddit Reviews:
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Last updated: Dec 5, 2025 Scoring
Liked most:
16
0
"how quiet it is. ... it's remained silent at night after a couple of years."
"Our favorite is the BlueAir in our bedroom - we keep it on auto mode 24/7. It’s super quiet and seems to work well."
"the BlueAirs are the only ones whose fans have stayed smooth and quiet."
17
0
"HEPASilent tech is real — gets dust, mold, pollen, pet funk, all of it"
"it's fantastic in keeping the farm smell to a minimum."
"Blue 211 by blue air is the best one I’ve used. ... Dyson air purifiers are terrible with dust and fur."
13
1
"We have two 211+ models and they're 7 years old. ... So far no problems with any of them running all day every day."
"the only ones whose fans have stayed smooth and quiet. ... i have owned 8 over 5-6 years at least without one single issue."
"have had mine for years and run it 24x7"
47
1
"I got two for my house this summer when half of my state was on fire and our air quality was terrible. They did a great job!"
"actually improved my symptoms unlike the levoit"
"Of those 4, the BlueAir 211+ is a powerhouse. ... the BlueAir 211+ cleans more air than anything but a Coway 400 or a Smart Air Blast"
8
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"They're incredible and the best thing is that they have this washable cloth sleeve (pre filter) that goes over the entire intake which happens to wrap all the way around. ... It does such a good job that the actual internal filter stays significantly cleaner and doesn't need to be cleaned or changed as often. ... It's a game changer."
"Blueair imo because they have washable prefilters, and pet hair and dander is large and honestly doesn't need HEPA filters to clear it out the way, say, smoke does."
"The outer pre-filters do put up a lot of dust and I can throw them in the wash."
Disliked most:
0
1
"the auto setting barely did anything unless I literally blew smoke at them"
"Their sensors suck"
5
4
"I have a blueair 211+ which i paid 400$ for and the filters are about 80$ each (changed once every 6 months) ... the price of the filters is as much as another small purifier lmao."
"Years ago, I bought (an awesome) BlueAir HEPA air purifier from Costco and they no longer sell the replacement filters."
"the larger sizes have significantly more expensive filters"
0
1
"I don’t like they have an ionizer that you can’t disable. ... Ionizers create ozone, and when ozone reacts with different molecules it creates all kinds of new compounds that can’t be predicted."
4
2
"OTOH, the two Blueair purifiers are on all the time and we have ***not*** noticed a decrease in the rate at which dust accumulates on the woodwork in the house."
"Maalikabok pa rin kahit super sealed yung unit."
0
3
"As much as I like the looks and such, I also want them to actually filter the air. ... I seriously can't find ANY data on how they actually filter. ... I did read somewhere about an H12 rating on the filters, but that's it."
"blueair) but coway has actual hepa and the filters are relatively easy to find"
"Although you'll find complaints it doesn't use a "real" HEPA filter"
The BLUEAIR large room air purifier only uses 38 WATTS on its highest setting and works very well. I got two for my house this summer when half of my state was on fire and our air quality was terrible. They did a great job! 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 https://a.co/d/7QV7gsw
r/BuyItForLife • In need of an air purifier for an open living room that is low energy. ->We have 3 air purifiers (one in the main space, one in my bedroom, one in the basement)- necessary when you have a Berner and 6 cats lol. The big main spaces ones are blueair blue 211+s- they're amazing, the covers are machine washable and they're super quiet. My room one is just a little one from ikea lol- also works great, but is definitely for a small room only.
r/bernesemountaindogs • Anyone use air purifiers? ->I have one and think it is worth $50. I got it at Blueair and it was on sale for $300 or so off. It's a very expensive air purifier and three filters are need. If you want odor control, too, you must get the [Classic 500/600 Series DualProtection Filter](https://www.blueair.com/products/500-600-series-dualprotection), as opposed to the filters that just clean the room. They range from $120-150 for three, depending on where you buy them online. The Blueair website even has a subscription plan where you get a discount for subscribing. I'm using it in a foyer which is connected to a living room and dining room, and it works fine. The foyer is right off the breakfast nook and kitchen, and it does an excellent job eliminating cooking smells that drift into the foyer and can travel upstairs. The first two speeds are quiet, but the third highest speed is very, very loud. I also have the Blueair 211+ and 211 Auto in other rooms and really like them, too. If I need air purifiers in the future, I will always buy Blueair.
r/AirPurifiers • Found a blue air Classic 500/600 ->I have one and think it is worth $50. I got it at Blueair and it was on sale for $300 or so off. It's a very expensive air purifier and three filters are need. If you want odor control, too, you must get the [Classic 500/600 Series DualProtection Filter](https://www.blueair.com/products/500-600-series-dualprotection), as opposed to the filters that just clean the room. They range from $120-150 for three, depending on where you buy them online. The Blueair website even has a subscription plan where you get a discount for subscribing. I'm using it in a foyer which is connected to a living room and dining room, and it works fine. The foyer is right off the breakfast nook and kitchen, and it does an excellent job eliminating cooking smells that drift into the foyer and can travel upstairs. The first two speeds are quiet, but the third highest speed is very, very loud. I also have the Blueair 211+ and 211 Auto in other rooms and really like them, too. If I need air purifiers in the future, I will always buy Blueair.
r/AirPurifiers • Found a blue air Classic 500/600 ->I have the Blueair 211 and Classic 605. Both are great air purifiers and make great noise on high, but they appear to be older models, so may not be easy to find. If you end up buying an air purifier that is too quiet, consider also getting LectroFan Classic White Noise Machine. It has lots of fan sound choices and is the only sound machine I have ever used that is loud enough for me.
r/AirPurifiers • Air purifier for 300 sq. foot room, that can purposely make some noise? ->You’ll typically see the same top-rated models across Wirecutter, Consumer Reports, and Tech Gear Lab: the BlueAir Blue Pure 311i+ Max, Coway Airmega 1512HH, and Winix 5500. The best choice probably depends on the size of the space you’re trying to cover. For my downstairs rooms, I went with two BlueAir units (the 311 and 211 models). BlueAir offers a 25% discount for teachers, military, police, and possibly firefighters (can’t recall for sure), available in both the U.S. and Canada. They also offer a 15% discount on filter replacements if you sign up for a 6-, 9-, or 12-month subscription. For my upstairs office/bedroom—since it’s a smaller space—I went with the Coway Airmega 1512HH and have been happy with it.
r/BuyItForLife • The REAL best air purifier - I HATE DUST! ->Well the larger 211 is still trucking after these years so that is why is just repurchased the improved model.
r/BuyItForLife • Looking for a high-quality air purifier that's built to last. ->BlueAir not having true HEPA and just a HEPA-type filter is fine. Multiple official testing sources show them pushing benchmarks similar to other true hepa rated units by popular brands. They still pull dust and still filter air just fine. They do have an ionizer and do produce extremely minuscule amounts of ozone. That’s why they’re certified. However, they are (especially the 511) weak units with a low CADR. If you want better performance, definitely return for a different unit or a stronger BlueAir model like the 211
r/AirPurifiers • Blue Air 511 - Buyers Regret ->I have a Blueair 211 and don’t mind it. Quite happy with it tbh.
r/AirPurifiers • Am I the only one who thinks that those Blueair air purifiers are not the best? ->We got blueairs on deep sale this fall.. Love them so far!! They're cute and extremely quiet and effective.
r/moderatelygranolamoms • What are the best air purifiers for home to enhance indoor air quality currently? ->I have a few, the levoit 200s, the coway ap 1512hh, coway 200m, Blueair 211, and a govee. How loud of a background noise are you looking for? I think the coways are a little TOO loud on high for my personal taste, the levoit 200s is a perfect level of background noise without being too loud in my opinion. The Blueairs are a little too quiet for what you are looking for on the highest setting in my opinion. At least the larger boxier versions.
r/AirPurifiers • Air purifier for 300 sq. foot room, that can purposely make some noise? ->I use a Blue Air 211 and it works great for our needs and allergies!
r/VictoriaBC • Air purifiers to combat allergy symptoms? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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