Customer Ratings & Reviews

I’ve been using a total of six Blueair purifiers in my 2300 sq ft home: three 211i Max units and three 311i Max units. The improvement in air quality, especially dust control, has been very noticeable. I placed the 211i Max units in larger open areas like the kitchen, office, and an upstairs loft with 10 ft ceilings. The 311i Max units are in each of the three bedrooms. I run them every day, mostly on Speed 2, and occasionally bump the 211i to Speed 3 in the kitchen during cooking. Even with all six running, the noise is minimal. Night mode on the bedroom units is practically silent, and power usage has had little to no impact on our utility bill. After a few weeks, I noticed a clear reduction in how much dust was settling on furniture, especially in the closed rooms. The app makes things easy by showing real-time PM2.5 levels (usually at zero now), letting me schedule runtimes, and giving filter status updates. The real benefit is the consistency. The air feels cleaner and it stays that way without much micromanagement. If you’re looking for a real solution to whole-home air quality, especially for dust, this setup has worked better than I expected. They’re not cheap, but they’ve been reliable, quiet, and effective.

This thing works great! We have two cats, one Maine coon and one domestic shorthair, both who shed a lot. The removable outer cover makes cleaning much easier! I love that I can throw it in the washing machine or I use a chomchom lint roller to get the dander and hair off the outside. The outer cover has extended the life of the filter, which is also awesome. I love the smart features, i can see all the information i need right from the app, and it connects to my alexa/smart home!

I love this purifier, its design is beautiful and the app for the phone allows you to control the unit remotely. I have notice less allergy attacks since purchasing.

Hi there its really highly recommended. Before I’m getting less sleep but after few days of using it my sleep patterns becomes longer and cigarette smell also from neighbour was removed because of the good quality purifier air with smoke filter. Experience clean air and fresh smell. Those who have asthma and have breathing problems you should get one to experience the difference.

This filter is an absolute BEAST. Run it in automatic mode, its quiet even when it runs on full blast and it dramatically changed my daily health as well as 2 of my roommates with severe allergies. This thing should be covered by health insurance, thats just how effective it is.

I have brought this thing with me through a move to a new house and it was the first thing I unpacked, if that tells you anything. I have big issues with dust and allergens, and this takes care of all that. I like that it has a carbon filter as well to help with smells. It runs as quiet or as loud as you need it to, has an indicator light, and (while I haven’t used it much) a useful and informative app. No more sneezing for me!

Great purchase. The app displays the air pollution inside vs outside and even has a filter replacement tracker which the previous model did not.

love my purchase blue air 311i max air purifier noticed the the difrence within an hour in my bedroom delivers lots of air and love the sleek desighn and look

Amazing. I have a dog and a cat and my allergies were killing me. This is so far one of the best air purifier I ever purchased. Also my sleep quality has improved after I got it.

Pretty, quiet, easy to use. Big fan of this line and the latest versions have the ability to child lock the controls on top — great to stop toddlers from messing with it :)

Excellent air purifier works excellent in my living room

The Blueair brand of air purifiers were new to me, so I did not have any special expectations. I decided to go with the Blue Pure 311i model since it was the best size for a medium-sized room. I was pleasantly surprised when I unboxed the product because it was much bigger than I thought it would be and looked classy with the grey colored fabric that surrounded the filter. I also liked how the top of the unit had a central area for all the controls for manual use along with all the lights to alert you to the different settings that are available. It was easy to set up the filter and after downloading the Blueair application on my smartphone I was impressed with the various features and controls that it added. I liked that it would show you the air quality outside of your home based upon allowing the location service enabled and then it would also monitor the air quality inside the room where it is used. I initially set it up right next to my bed because of the severe allergies that I have, and I was looking forward to having extra relief that I expected from the HEPA filter. I was impressed with the ability to setup schedules of when it could run, adjust a night mode for it to reduce the brightness of the control lights on top of the unit, and to turn the unit off or increase/decrease the fan speed. After setting up the unit and researching the expected length of time before you needed to replace the interior filter and found out that it could last up to 9 months but that the app keeps track of when you need to replace it. The Blueair app also has voice control assistance via Alexa or Google Assistant activation. It also has a feature called Welcome Home that you enable to turn off the machine when you leave home, and it will turn it back on when you are getting close to your home. The application features are an excellent way to get the best use of your air filter with the latest technology. Blueair air purifiers also have the Energy Star certification for low electricity use, so you do not have to worry about leaving it on for too many hours. I have enjoyed the change of the air quality in the two rooms that I move the air filter to depending on if I am working or sleeping and it has made a difference in my allergies already. I will be looking for more Blueair products for the rest of my home now that I have tried out the brand and am pleased with the high-quality work.

This is what I imagined an air purifier should be in 2023. It comes with an easy-to-use app, it's quiet, and above all, it filters the air your breathing everyday. This unit has a soft outer layer and is easy to pickup and move around the house if necessary. Controls are very simple to understand and operate. You can download the app for iphone or android. There's a quick install, pairing up with your phone and your wifi network. You plug it in, and it starts to do it's job. If you would rather hit buttons manually, they are on top of the unit and are fairly easy to understand and control. The first thing you see once you have the app running is a graph with a rating from very polluted to excellent air quality. Then you have a fan speed from 0 to 3. You begin to hear the fan at 3 but it's very tolerable even on high. You can put a child lock, run it in night mode, or set it to auto filter the air as necessary. Night mode turns down the LEDs and the fans while you're trying to sleep. You can also see a filter rating so that you know when to replace. LED's can be adjusted here as well if you want to turn them down or off. At the bottom of the page is a schedule where you can change air purifier settings based on your own hours and days. I've set my setting for an 8am to 5pm Monday through Friday while I'm at work. I was surprised at how quiet this unit is. It's nice for a soft white noise at night. I typically don't turn the fan higher than 2 because the air quality is usually excellent in my apartment. This unit can purify almost my entire apartment in 30 minutes. I have approximately 1100 square feet. Filters are also suprisingly affordable for this unit. The only time that I've need this purifier to work right away it passed the test brilliantly. It was after we burned our food on the kitchen stove this past week. Within about 15 minutes the burned smell was completely gone. I didn't even realize the air purifier was doing it's work. I would recommend putting this unit in a large area or a room connected to the kitchen because it can filter out air and strong smells quickly. It's also nice for the peace of mind that pollens, pollutants and dust are removed from the air that I'm breathing in my home. I highly recommend this unit if you're considering an air purifier. It's simple to operate, it works perfectly, it's quiet, and it looks good in any room due to it's light color and rounded edges. An added plus is there's an extensive amount of literature and support on their website.

I absolutely love this air purifier, and have to say it is one of the most effective purifiers I have used! The purifier is the perfect size to put in the corner of any room, with a neutral, simple look that is stylish and fits any room you may put it in. The controls are extremely simple, with a power button and a filtering-level adjustment button to cycle through the 6 filtering modes. You can connect the purifier to your phone too via the Blueair app and wifi for more advanced controls and visualizations of the air quality in your home, a neat and useful touch! This air purifier is extremely strong as well, definitely enough to allow the purified air to circulate a medium sized room in a home or bedroom with ease (the highest mode honestly could double as a fan for a room)! It should be noted that while this product is advertised as HEPASilent (which as a sidenote, the noise output from this purifier is very low, and almost all settings are silent as advertised except higher settings with standard ambient air blowing noise!), it is not indicated that it is an actual HEPA air purifier, but, I have dust and pet allergies, and with a cat present in my home and dust circulating at times (ie. with hvac running), running this air purifier 24/7 in common spaces in my home seemed to improve my indoor allergies, which, while I am no scientist and can't make any scientific efficacy claims with certainty, I happily observe while running the purifier! Overall, this air purifier is a great and very helpful addition to any home, and has greatly improved the quality of air in my home!

Probably best bang for your buck. No issues so far

Before agreeing to use and review this Pure 311i I have purchased several other Blueair air purifiers and find the brand to be the best: I like the Scandinavian minimalist design with different coordinating fabric prefilters. They run quiet with a simple color-coded visual of air quality. I have the 411 in both my kids and my own bed room and I feel like we all breath better having these run silently while we sleep. The 311i is a larger model, the largest from Blueair I've tried: and is great for my 24 x 20 ft living room, while its size means that it isn't invisible, I feel like I can put it in a corner next to the sofa and it gets good airflow without being obtrusive. Like I expected: it runs quiet and I've enjoyed the color coded notifications of my indoor air quality. I also like that this one now comes with a mobile app: professionally I'm a product manager and I'm obsessed with analytics, so it's great to be able to get historical context around when my indoor air quality caused the 311i to run harder and how that indoor air quality related to the outdoor air quality at my house. I found it pretty straightforward to setup the app, easier than setting up some other IoT devices like lightbulbs or thermostats. I was hoping that the air purifier was compatible with the Matter smart device standard so that I could add it to my other Smart Home suite of devices but given that the app and air purifier are both nice I'm happy with them in their stand alone format.

The air quality feels amazing. I like the connectivity of the air purifier to an app. Very easy to use. Very informative.

Wow i am super impressed. So i had a air purifier in my Livingroom that was a bit smaller than this one but not by much. When i received the box from UPS it was big but i was very surprised how lightweight it was. Now my old one has been running for almost a year and its way louder even on the lower setting its still pretty loud. This Blueair is so so quiet i did not even think it was running after a few hours when it had literally cleaned the air in my house. They have a few different models as small as one to clean the air in like a smaller bedroom and all the way up to one size bigger than the one i got. This one cleans a room about 928 square feet in about 30 minutes then it's sensors can tell the air quality and it will adjust the speed of the air purifier to a slower speed. Like i said mine has gone through the initial cleaning and now it's whisper quiet. I had to put my ear rite up to it to hear if it was even running,It is super quiet. As you can see in one of my screen shots of the app running on my phone where i initially turned it on and the air quality was not very good and that was with my other air purifier running constantly at a way higher speed for almost a year. So turning the blueair on and seeing that my old one was not even remotely doing the job was kind of disheartening because i feel like i have been running my old one and all it was doing is wasting my electricity and humming in the background and not doing what i paid over $130 for it to do. Another nice feature is the outer material comes in an assortment of colors, so you can match your paint or furniture so it doesn't stick out like a sore thumb. It was super easy to set up with the app and i had it out of the box and up and running in about 3 minutes. As you can see from the screen shot on the app the air quality in my house whent from bad even with my old air purifier running constantly for almost a year to very clean in under and hour. This is one of the best investments i have made in a long time and i can tell by the amount of dust in the air and it smells so much better in my house that this was a great purchase and its doing a great job. Like i said also if you have a smaller area to clean the air in they make several models that are less expensive so you can adjust your budget and save some money or you can buy the bigger ones put them in the smaller are and clean the air so much faster. All in all this was a great purchase and well worth every penny.

Ever since I found out as an adult that I have severe allergies, I’ve made it a point to make sure my house is treated for allergens, and that includes the use of air filters. I now have several different brands and types of air filters in my house, and while I have no objective evidence - like test data - of better air quality, I can say that anecdotally my allergies and the quality of my sleep has never been better. When I focus on features, ease of use and design, I’m comparing it to Dyson products, 3M and Molekule (which I all own). SETUP AND EASE OF USE In terms of setup and simplicity, the Blueair is easily one of the best. I had issues connecting my Molekule to my Wi-Fi network, the 3M doesn’t have any smart features, and the Dyson was easy to setup. (Granted, Wi-Fi app access is not necessary). I plugged it in, the lights on the display came on, and after downloading the app, the app immediately found it and immediately connected to my phone. It comes with a manual which is an easy read and simple to understand, but it’s somewhat unnecessary. At least when it comes to the controls, it’s very intuitive. There’s two buttons, one to turn it on and off and the other to switch between fan speeds. There’s 3 fan settings with the 4th putting it in automatic mode and the 5th being night mode which sets the fan speed at the lowest settings and sets the brightness of the display to the lowest. Bottomline is setup and ease of use is an A+. DESIGN With air filters, especially larger ones, are meant to be focal points in your rooms. They are supposed to be placed away from walls so it’s difficult to keep them hidden or otherwise have them blend it. Bottomline is that the design of the air filter does matter (at least to me, and presumably most people). You have the Molekule which to me is a sophisticated looking filter, to me it’s the filter Apple might design. At the bottom you have the 3M which is definitely function over design (it’s a large ugly black box). Obviously design is subjective, but I find the Blueair filter to be very attractive. It starts with the fabric filter cover that filters large air particles on the outside. If you don’t like the color, there are other colors that fit your look. The interface blends into the top of the filter and is not distracting (vs. Molekule which has a small OLED screen), but basic. To me it almost looks like a round laundry hamper, but to me, it’s handsome and I don’t mind having it on display in the middle of my room. AIR QUALITY AND SOUND As I said before, I really don’t have a way to test the filtration quality. I rely on the app, which I admittedly had to educate myself on, and anecdotal evidence. As I said, my quality of sleep has improved and my allergies are better. From my perspective, it works well. The app tells you the air quality based on particle pollution, or PM. It also measures AQI or air quality index. The AQI index appears to be based on your location, so the app is pulling that information from external sources. So you’ll notice that the AQI is listed as outdoor. For indoor, it simply tells you whether the air quality is “Excellent” or otherwise (i.e. Good, moderate, polluted, etc.). The filter can apparently capture PM of 2.5 which includes fine dust, animal dander and bacteria. I don’t think it actually tells you what it’s filtering (again, I’m ignorant on some of the science - I have to take this at face value). The other big thing is sound. The Molekule air filter can sound like a jet engine, as does the 3M model. The Dyson does too when it’s on full blast. The Blueair is quite the opposite and is very quiet, even on the loudest settings. It apparently has a “noise reducer” on the inside. Now, some people may like the low hum of an air filter as white noise when they sleep - something to consider when choosing an air filter - while others might think it’s distracting. The Blueair is extremely silent; on automatic settings I can barely hear it even at night. It’s quite impressive. MAINTENANCE I think a major factor in deciding on an air filter is maintenance costs. First there’s the hurdle of initial costs, but if you don’t think you’ll need to change the air filters - you probably do - you’ll soon realize they’ll need to be changed. Just look at one of your filters after several months and you’ll want to change it. Then comes the frequency of having to change any filter or filters and the cost. Molekule and Dyson brands fall on the expensive end, with a suggested replacement time of every 6 months. It’s about $60-70 to replace Molekule filters (in my model, there are two filters). The 3M filters are cheaper, about $13 each, but they require more frequent replacement. This particular model recommends filter replacement every 6 months, and the costs if you opt for a subscription (which I recommend so you don’t have to remember to order them, and you get a few dollar discount) is about $44. This gets you a replacement filter, but you still have to perform some maintenance on the outer fabric cover. The manual recommends vacuuming the outside (if you see dust on it) with a brush vacuum attachment. Or you can opt to wash it and air dry it. When taking into account the Molekule, which requires the purchase of two filters, I certainly don’t mind washing the outer fabric every so often to prevent my from paying for a second filter, so that’s another bonus of this model. CONCLUSION This is a great looking, quiet, air filter that has relatively low maintenance costs. Yes, it is a little ont he expensive side compared to some other options, but taking everything into consideration, it’s a great option. Especially when you take into account that it’s intended to cover a large area like a large bedroom or even a living room. I can comfortably say tha the use of air filters (this model specifically, but also just the use of air filters in general) has increased my quality of life at home; especially living in an area where my allergies can be difficult to manage.

The Blueair 311i Max air purifier was designed in Sweden, which might explain its no frills design. It is short and squat (19 x 11.5 inches) and has a cloth pre-filter that can be washed and/or swapped out for one of a different color and design. There are no fancy controls to show % filter life or a numerical air quality value. The control module is a very thin circle that controls the 4 fan speeds. There is a colored light bar on the side that indicates 5 stages of air quality status from excellent to very polluted. There is also a light that comes on to indicate that the filter needs to be changed. This air purifier is for medium spaces and per the manufacturer can clean up to 387 square feet in 12.5 minutes or 929 square feet in 30 minutes. My air quality is “excellent” so I wasn’t able to verify the claims. It uses both electrostatic and mechanical filtration and captures particles down to 0.1 microns in size. It is said to remove cooking odors, smoke, pollen, dust, pet dander, mold, bacteria and viruses. It is very quiet. The noise level ranges from 23 dB at the quietest setting to 50 dB at fan setting #3. I couldn’t hear it at all on the auto or the night settings and had to look at it to know it was turned on. The air filter comes ready to pair with an app. There is an option to cancel out the pairing and not use the app. I prefer to not use apps whenever possible because I don’t like giving up my location and personal information or cluttering my phone. However, due to the design of the 311i Max, the app is almost a necessity. It is possible to set the child lock on the control module and to adjust the brightness of the lights by pushing 2 buttons simultaneously, but it’s not easy to do. The app can be used to change the fan speed, activate child lock, adjust the brightness and check the filter status. It is also possible to set a schedule for the fan mode and brightness by the day of the week and time of day. If you don’t mind letting the app always know your location, there is a Welcome Home feature. The air purifier will go on standby when you leave home and turn back on when you get close to home. I had no problems pairing the air purifier to my phone. There were warnings about having to disable the VPN and about needing a 2.4 GHz wireless connection. I didn’t have to change any of my wireless or security settings. It is lightweight and easy to move. The plastic circle with the manual controls seems flimsy and overly sensitive. Just getting my finger close to, but not touching it, can activate the on/off button. A couple of times just walking by it turned it on. There is a section in the manual about potential TV interference - maybe due to the electrostatic mechanism. I get my TV reception via a free TV antenna (not cable) and I have the air purifier about 30 feet away from the TV. I did experience some blipping and distortion in the TV reception when the air purifier was on and the reception did improve when I turned it off. But since the distortion is random I couldn’t verify that the air purifier was the cause. The Blueair 311i Max air purifier should do a good job of purifying the air in an uncomplicated manner. If set on auto you wouldn’t even know it was there.