BLUEAIR Air Purifiers for Large Home Room, HEPASilent Air Purifiers for Bedroom, Pets Allergies Virus Air Cleaner for Dust Mold, Blue Pure 311i+ Max

It was easy to set up. I admit I don’t notice much a difference in my air quality. But it’s a comfort and on the high setting, really great if oyu like some ambient fan noise when you sleep. The settings that allow you to dim the light (through the app) are so great. I love that this is quiet (no beeping), looks good, and is easy to set up. The design and app design are really brilliant. Upon installation, it showed in the app that my air quality was perfect, and the only occasion that it has dropped was temporary and when I was using cleaning spray. Within an hour it was back to perfect. Are the air quality readings trustworthy or just pretend? Idk.

For 30 years we have lived in this house with dust and could never find a product that we trusted to work with the forced air ducking in our house. Then three months ago, we found Blueair air purfiers and the comments were so favorable that we ordered one for each bedroom. After two weeks, the improvement in our air quality was so great that we ordered a very large one for the large family room, dining room and kitchen area. After three months, we don't have to dust the furniture or wood floors. It is amazing and now I'm thinking about all the fine dirt we have been breathing for thirty years. In fact, we starting noticing the change in the air we were breathing within a couple of days of starting the first three. It was sweeter smelling and tasting than we had ever experienced, almost like being on a mountain miles for any town. I'm an 87 year old retired Air Force Officer and I've never ever write a recommendation like this on anything!

Purchased back in October 2024 because I had moved into a basement room and with used furniture with visible water damage at the bottom, this is also near a busy road which brings in a lot of dust. I have outdoor and indoor allergies and for this first month living in the new place I tried to carry on hoping the dust and possible mold allergies won’t affect me but boy I was wrong. Since I was not in a position to buy new furniture at that time and needed a place I opted for the best next thing. After waking up for weeks with serious allergic symptoms that prevented me from having a restful night looked up many different air filters that would also filter mold particles and this one was the best in the market. From day one my sleep instantly improved and my allergy symptoms which are now none existent. A few things that I never thought I would come to appreciate from it was how effective it is at improving air quality with the smell of food after cooking, or keeping the air cleaner when ever I do my straighten my hair which is a lot. My air filter has been on 24/7 since day one and only now 6 months later I am seeing how much dust and debris each filter collects.

A great product for the price .. I leave ours on during the day at the low setting. As Im a bit sensitive to noise I usually turn it off when we go to bed. The cloth cover easily comes off for washing and does a pretty good job at pre filtering the dust.

Initial impressions of this purifier are very positive. I'm not setup to test the actual purification abilities beyond an anecdotal indication that it seems to clear the air well. See the reviews on Smart Air (they think it works very well but is over priced), Consumer Reports (the 211 and the Classic 605 are their two highest rated units), and elsewhere. BlueAir is very well regarded in terms of actual cleaning effectiveness.For all the other features, here are some of my key decision points and useful tips:First, I bought both a 121 and 211+ - they have similar specs, except the 121 has a 400 CADR rating rather than a 350 for the 211. I was a bit surprised to realize that they appear to have identical motor and fan units - you can swap them back and forth, and they measure identical power consumption, and sound the same. This means the 121 gets the slight boost by simply being taller and holding a larger filter. More filter area would make for more efficient filtration, and a small boost in CADR rating.This isn't really a knock, it is just worth noting if you are considering both units. I would say the 211+ is the better value in this regard, the 121 is over $120 more expensive, has $20 more expensive filters, and only slightly more filtration capacity. If you need something just barely over the 211+ in filtration, only have space for one unit, and have a large open space, then the 121 makes sense. Otherwise, if you need more than the 221 provides, and you have a space that isn't just one big open room, then buy two 211+s - it is still a better value than most of the other comparable units, and two small units will filter an uneven space better than one loud one.As for noise, these are both very quiet units (same noise, because they seem to have the same fan). The background noise in my house measured at 38dB, and I measured on an iPhone running DecibelX, A-weighted, at 1 meter from the unit, horizontally, mic pointed at the unit.- Low - 39dB, just barely over the background noise. It is not obvious that the unit is even on.- Medium - 48dB, I can tell that it is on from around the room, but only if I listen for it.- High - 55dB, OK, now it is making some noise, but it is soft in tone, not rattling or whining. Still reasonable in volume, and easy to talk over. It wouldn't kill your conversation and if you sleep with a white noise machine it might actually be similar volume (our DreamEgg at mid-high volume is about this loud).Power consumption is as indicated on the package - 30W, 43W, 62W, as measured by my meter. Quite reasonable again given the ~400CFM the fan must be blowing.Small things to appreciate:- The unit is attractive and simple. It doesn't look like a weird 90's appliance with a bunch of random protuberances or shiny stickers. It is clean and Swedish, and would integrate with a lot of decor. The changeable pre-filters come with a light blue and a midnight blue, and you can buy others. Looks fine without it as well, pure white.- The overall construction is simple and sturdy - a metal box to hold the square (but flat folding) filter, and an upper box with the controller and fan unit.- Upward blowing and pulling from all sides makes for a lot of filter area - units that just pull in the side or front are going to have a lot less filter area for the same air flow - meaning more noise.- The button on the front is capacitive - touch to change between off -> low -> med -> high -> off. It is sensitive and easy to use - I change it with my toe while holding a baby.- The unit remembers the last setting if the power is removed and restored. This means you can use it with a timer or in my case, Home Assistant automation!- The LED showing the current speed dims to 10% after a few seconds - very nice - I'm usually forced to put black tape over everything I buy to dim the bright LEDs everyone uses.The unit does not include Wifi (pointless and risky), particle counters (not going to be accurate at these price points), a display (why does it need one?), or an auto mode (read the articles on Smart Air about auto modes - they are mostly useless and sometimes much worse than just setting a moderate level and letting the unit run all the time). Basically it has everything you want - quiet fan, large filter area, easy buttons, and nothing you don't want.It isn't the cheapest unit, but it isn't the most expensive either. Compared to very cheap units you get a quieter fan and a more proven filter technology from a vetted company. Compared to more expensive units you lose some (mostly useless) control features, and some options for multi-stage filtering or chemical canisters like you might see from a (8X the price) IQair. My inlaws have a Blueair Classic 605 and this unit is smaller and quieter, for only slightly less filtration capacity, at 1/3rd the price.All in all, an easy recommendation if the filtration capacity meets your space needs.

The unit was larger than expected but once I found a good place in the room I'm getting use to it. I have used other Blue Air purifiers and I like this one the best. It is quiet, easy to use and eliminated the use of a stand alone humidifier and a separate air purifier. Arizona is a dry place and you need a humidifier or you feel like a lizard, and you need an air purifier because of the dust and pollen. This 2-in1 purifier does the job so far. You get what you pay for.