Customer Ratings & Reviews

[Employee of bestbuy] easy to set up and not too loud. makes a huge difference in air quality.

I bought this because my son has minor cat allergies and ever since this has been in my home, the allergies disappeared. I love that it can read the air quality and control it from my phone .

Works great. Pairs easily with the app and is quiet and stylish.

Larger than it looks online. Easy to use and very quiet on level 2.

This smaller machine packes a punch when it comes to knocking out PM2.5s. I like that app and buttons are very easy to use - doesnt take a whole lot of intuition. I also like that the app will tell you how many minutes it will take to clean the space.

Does a great job is very quiet cleans the air fast

Purchased the Blueair Blue Oure 511i Max Air Purifier in white-gray color. Needed for kids room and allergies to cats. Works great so far, great product, great purchase.

So far it works great. Love the added feature of night mode to be quiet and turns off the led light. I was confused about the sleeve and filter installation due to if having nothing but the fabric sleeve around the filter as most other have a housing unit. I don’t believe the indication light for clean air as we did put it in the basement with lots dust, known very high radon levels, and in general known to not be good air it still gave us an immediate green light. Not sure that it actually considers the air quality at all but it was a good idea to have just in case but not worth extra $ if it doesn’t work.

So glad I bought this air purifier. It's so quiet that I cannot tell it's on, but it does it's job of purifying the air.

I always wanted one since I suffer with allergies. This helped clear some of those issues. I love how the app syncs well and I can turn it off and on remotely. I would buy another one.

After running this in the bedroom for a few days, I went from averaging 3-4 hrs of restless sleep to averaging 7 hrs of restful sleep. I was getting dizzy when in the bedroom, and after running for a few days, the dizziness went away. It is very quiet. This was money well spent.

I've been using several Blue Air products in the past six years or so, but this one is the first with the smart feature. Scheduling through the app is easy and will help sustain the filter for more prolonged use. The new technology makes this even smaller in size, enough for our living room.

Love it! Living in an area with abundant trees. When in use this product is quiet and the air clean. Nice addition for my bedroom.

quiet, good looking, very efficient and effective, remote is very handy for monitoring

We are big fans of Blueair and have several in our home. We purchased this model for our daughter's bedroom. It is easy to use and we love that we can make changes from the app on our phone. The air feels purer when it is operating and there seems to be less dust on surfaces in the room. Our only issues: it can be a bit loud when running in its highest setting, it's price is higher than many competitors and the filters are expensive.

Keeps our bedroom air nice and clean. Very effective at cleaning our air and removing unwanted odors from chemicals and smoke. Our local air was smoke filled from a brush fire nearby. The Blue Pure 511i Max cleaned our bedroom air automatically and kept it clean until the smoke was totally gone. Also removed the paint odor when we repainted our closet.

I’m beyond happy with my BlueAir Pure 511. The odor cleaning is incredible—whenever I cook, I keep it running in the kitchen and it clears everything right out. It even kicks on automatically after a hot shower, leaving the air fresh and clean. This purifier has also made a huge difference with allergies and dust; the air feels lighter and easier to breathe. I love it so much that I plan on buying a smaller one so I don’t have to keep moving this one around the house. If you’re looking for an air purifier that really works, this is it!

I highly recommend this if you are a clean freak or have allergies. It is actually pretty quiet on low and medium. Once you crank it up to high, then the sound is noticeable. So because of that you can just put it on high either at night for some nice white noise or when you leave the house. I noticed now when the sun shines through the window there is almost no dust floating around. I know the replacement filters are pretty expensive, but if you go to Amazon, you can get some filters from other manufacturers that are a lot less expensive.

The product was easy to set up, and connect to the app. The app was simple to set up and automate. The 511i is user friendly and truly cleans the air. I would highly recommend.

Works so well! My husband wakes with a stuffy nose every morning--until we got this purifier. Noticed a change the first day. Only thing I'd change is the size--you need a little plant stand for it.