Blueair - Pure 211+ Auto

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.

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.

I am a Blueair girly for 5 years now. I purchased mine due to days of research and consumer reports back in 2020. I keep mine on high since it is a nice white noise sound for my dogs (otherwise they bark at any little noise at night). The high setting is also where you find most of the benefits of cleaning the air in the room. If I do not have mine on, I can smell my dogs and everything feels dirty. I have two 211+ models.

I use a Blue Air 211 and it works great for our needs and allergies!

I had a couple of Winix 5500? units and now have a BlueAir 211+. I tend to open the balcony door when I cook so most of the smell vents out, and I live in a place that's not too dusty, so it works well in reducing dust on furniture. Unfortunately my place has wall to wall carpets. Is it worth it? I don't know. Less dust and obviously the dust stuck in the machine is dust not on the furniture, but is it reduced enough to where I'd buy it again? Not sure. My place is 988 sqf, so pretty small too. A few things to keep in mind; A lot of them have no real testing done, just bloggers who claim it does something. Filters can be expensive. They usually need to run on high to reach their CADR, and on high they are usually noisy, so I can only run mine on low or medium in the other room. No chance using it in the bedroom if I'm in there.

Air purifiers don't do a whole lot for asthma (^(*the studies I saw were from a couple of years ago, so if new evidence is out, please link it so I can update my knowledge*)), but a good air filter will attract dust mites and cat hair and other stuff. Check your allergy tests to see what it is you're allergic to, and ensure your air filter will capture it. The biggest key to one of these working is air flow. If you run it on 'low', it won't work well at all. If you have gaps/air leaks around windows and doors, it won't work well. If you own your own house, you can install a filtration system tied to your HVAC - that way you can often get good airflow without all the noise of a fan in your bedroom. If not, you're bound by the room air filters. Anyway, I settled on a BlueAir 211+ because of energy efficiency, and while it's annoying to be in the same room when it's at full speed, it's not as bad as some other units. The Winix C545 (I think they were) were noisier and used more electricity.

Highly recommend Blueair 211+ for dust and pets.

Coway AP-1512HH and Blueair 211+ are top picks, quiet, powerful, and long-lasting. Great balance of performance and value.

Don't get a winix 5500-2. I got 2 of them a few years ago and within months of each other the bearings on both started making a horrible noise. I looked into fixing it myself and it turns out it's very common, and it's nearly impossible to fix because it's a sealed system. They cheaped out on a 10 cent bearing and now they're pretty much useless. My blueair 211+ has been great though. I don't really know how they would be a scam. Just like any filter, they take stuff out of the air.

Ah, that's too bad. We've got a bunch of 411s and they're all still going strong. They're fairly simple, which is I suspect also why they're relatively reliable. I wonder if it's repairable honestly. Like maybe something just came loose inside there. I actually couldn't remember exactly when I bought all of ours so I looked it up in my Amazon history. We have three 411s that are all 8 years old now and still going. We have two 211+ models and they're 7 years old. And then 3 411 Autos that are now 3 years old. So far no problems with any of them running all day every day.

\+1 to CR boxes, I ended up building [https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/](https://www.texairfilters.com/an-easy-to-build-corsi-rosenthal-box-using-modular-pc-fan-systems/) and prefer it over my Blueair Blue Pure 211+ I bought in 2020. r/crboxes exists too.