Blueair - Blue 3210
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Reddit Reviews:
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Last updated: Dec 15, 2025 Scoring
Liked most:
136
16
"its night mode is whisper quiet"
"how quiet it is. ... it's remained silent at night after a couple of years."
"Silent"
116
13
"I've been using it for over a year now, works great with no issues."
"I've had mine since it came out!! And it keeps going even with same battery it came with but I take care of it / them maintenance wise.."
"I currently use a very old Roomba i8+, and honestly, it still does a solid job... ... Same. I have no complaints with it and I take very good care of it maintenance wise."
75
2
"it’s majorly helped w allergies and dog smell"
"Also have rhinitis and na-lessen na yung pag t-trigger."
"We are a household full of asthmatics with allergies. We have 4 BlueAir purifiers and I cannot recommend them enough."
8
0
"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."
"external filter ... external prefilter cleaning by vacuuming and/or washing makes them last way longer."
"This helps catch a lot of big stuff and I change the inner filter only annually."
22
0
"it’s majorly helped w allergies and dog smell"
"it's fantastic in keeping the farm smell to a minimum."
"Both make a dramatic and perceptible difference in air quality. ... I can now paint my nails in the house and not choke out anyone who enters the room, or risk giving the cat (or myself) brain damage."
Disliked most:
0
17
"According to Shark, my air quality is a perfect 100% ALL DAY LONG. Even when: - My elderly Akita wanders by shedding fur like it's his job (and also pooting pretty non-stop) - I deliberately sprayed Lysol directly in front of it (for science!) ... The Shark? "100% perfect air, nothing to see here!" 🙄 ... But because it thinks the air is always fantastic, when I put it on auto/Eco mode, the higher fan rate is never triggered. ... It turned bright red, and said that the air would be clean again unless 60 minutes. It was back to 100 within a minute or two."
"I ordered 4 of these things and ALL of them sat off all day and night saying the air was perfect. ... All 4 of them did the same thing and would rarely come on."
"It's no wonder the filters last for 5 years, the thing never runs. ... They are not "purifying the air" if they are not moving the air through the filters."
30
42
"The air purifier is now unusable since I can’t replace the filter."
"the filters are expensive as shit"
"the filters are expensive as shit"
1
3
"it has ‘electrostatic’ as well as HEPA-type filtration (they claim theirs is better). I understood electrostatic was the only thing that could actually clean the air like for gasses or VOCs, not just remove particles. Looking back and re-researching, it looks like anything electrostatic will produce at least some undectectable ozone. So, well I’ll-be-damn! I wanted to not have to worry about ozone!"
"it has ‘electrostatic’ as well as HEPA-type filtration (they claim theirs is better). I understood electrostatic was the only thing that could actually clean the air like for gasses or VOCs, not just remove particles. Looking back and re-researching, it looks like anything electrostatic will produce at least some undectectable ozone. So, well I’ll-be-damn! I wanted to not have to worry about ozone!"
"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."
10
15
"Also I just put it in the bathroom w my bf while he poops. No change in the air reading or smell of the bathroom."
"According to Shark, my air quality is a perfect 100% ALL DAY LONG. Even when: - My elderly Akita wanders by shedding fur like it's his job (and also pooting pretty non-stop) - I deliberately sprayed Lysol directly in front of it (for science!) ... The Shark? "100% perfect air, nothing to see here!" 🙄 ... But because it thinks the air is always fantastic, when I put it on auto/Eco mode, the higher fan rate is never triggered. ... It turned bright red, and said that the air would be clean again unless 60 minutes. It was back to 100 within a minute or two."
"I ordered 4 of these things and ALL of them sat off all day and night saying the air was perfect. ... All 4 of them did the same thing and would rarely come on."
2
3
"The AirFanta 3Pro uses E11 filters (95% interception efficiency at the MPPS), whereas HEPA is 99.95% or 99.97% interception efficiency at the MPPS, depending on the standard used (US or international). ... Previously E11 was called H11 and *was* considered a "HEPA filter," but that has since been changed."
"The inventor chose this filter because it maximizes the overall CADR, so switching to a HEPA filter would actually make the filtration worse."
"Blue air is the best of the three, also isn’t HEPA but has a static generator which bothers some people."
I have BlueAir in all my rooms. Makes a significant difference for me.
r/dubai • Air Quality in Our Buildings, Anyone using Air purifier? ->It helps a lot. I bought it due to smoke but I’m happy to get rid of cooking and dog smells. I have one from Blueair.
r/askTO • Had an air purifier helped with the air quality? Is it worth getting one? ->We love our blueair also. Got a dog a month ago and happy to hear from guests our house doesn’t have a dog smell.
r/askTO • Had an air purifier helped with the air quality? Is it worth getting one? ->We are a household full of asthmatics with allergies. We have 4 BlueAir purifiers and I cannot recommend them enough.
r/workingmoms • Is it worth it to buy an Air Purifier? If so, what's the best air purifier for home in your view/experience with it? ->We run 3 in our house, one in the main living area (diy pc fan with hvac filters), and one in each bedroom (blue air brand or something, I think). Also consider plastic on leaky windows (cheap sliders).
r/saskatoon • Air purifier ->Sorry, what "air quality problems"? Can't say we've noticed any, with our 3 air purifiers running 24/7 in a one-bedroom apartment... 😉 (Both of us have pollen allergies and one of us has asthma.) That should answer your question. Seriously, buy an air purifier. Once you feel the difference you'll probably end up getting a few more. We've got two of the medium Coway models (Airmega AP-1512HH or 200M) and a smaller BlueAir. They also help with smells -- bathroom, pet, or cooking. Highly recommend the Coways because they: * Are whisper-quiet on all but the highest setting, and can auto-adjust (though we usually leave them on medium because they get loud if they kick into high). * Move a lot of air for their size * Have filters that last way longer than they're rated for (as long as you clean the prefilter) * You can turn the main light on the purifier off for use in a bedroom at night Tip: it's better to get several medium air purifiers and put one in each room or area rather than getting just one big one.
r/askTO • Had an air purifier helped with the air quality? Is it worth getting one? ->There's also the Winix D360/480 series as a Home Depot exclusive, which doesn't have ionizers and has a pretty high CADR rate. I don't think there are after-market filters but Winix said they continue to manufacture filters for 10 years after so maybe you won't have problems. I'm eyeing it. Honestly my first air purifier was BlueAir and I loved it. Dead silent on the first setting (I think having a vertical fan helps), and I could run it on the high setting all day. I have birds and had no idea about the ionizer though. I've gone through one Honeywell which made my room smell like a plastic pool toy, and I'm not so happy with the return-replacement either, I ran it on turbo today and got a pretty big headache and felt like I was having trouble breathing, which sounds insane but it stopped when I turned it off. I'm almost tempted to just go get another BlueAir and remove the ionizer manually, but I also know that their CADRs are based off of ionizer on, and the larger sizes have significantly more expensive filters.
r/AirPurifiers • I’m lost ->A good furnace filter taped to a fan so it pulls air through it will works well. I’ve got a couple blueair units mostly because the fans are nice and quiet and they look nice so I can use them year round.
r/vancouver • What air purifiers are best for forest fire smoke? In a 400sq ft room? ->Blueair has been awesome for our basement, dogs, cats, sometimes chickens and always a burning fire for the wood stove and you would honestly have no idea all of that was going on. I wfh in the basement sometimes and I could tell that without that I was feeling gunky. Buying it made a huge difference!
r/CleaningTips • What air purifier do you swear by? Trying to cut through the hype. ->Coway, GermGarurdian, and Blueair are all top rated. I personally have 2 blueair they work great I have 2 cats and my thanksgiving guests couldn’t smell them or their litterbox at all!
r/BuyItForLife • Home air purifier. Especially those good for people with allergies ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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