Air Purifiers for Medium Rooms, Bedroom, Kitchen, Cleans 1,858 sqft in one hour, HEPASilent Smart Air Cleaner for Home, Pets, Allergies, Virus, Dust, Mold, Smoke - Blue Pure 311i Max

...after 10 months of use in a 2100 square foot house. I run it on automatic and the fan speed remains low, while moving air and staying quiet. The performance of this unit is quite remarkable beyond what my HVAC cleans with a MERV 11 filter. This product is especially helpful when noticable odors are evident - as from cooking. The unit almost immediately senses the odors and begins ramping up the fan speed to clean the air. It works rather quickly. Impressive when cooking fish and the associated odors that produces. Still and my first filter. Did order extras and an outside unit sock. Customer service is excellent should you have any questions. Well built and expecting it to last a long time.

Excellent for everyone's health. Especially people with allergies. I turned it on and a day later my itchy dry & sometimes wet, eyes stopped itching. For that alone it's worth every penny. My place is completely carpeted. Removes dust particles in the air. On automatic, very quiet, not noticeable. When manual, set high, there is some noise, but not bad. Removes smells. Indicator on front gives you a blue, green, orange or red. Excellent down to poor air quality. Needs to be turned on high. On top of the unit is the controls & the number to indicate what air quality. Mine is for 3,000 sq feet. My condo is 1,200 sq feet, but I have an open loft above the kitchen & dining rooms. I have taken naps with it on & sleep fine. I'm a very light sleeper. No flashing lights. Just one bright dot in front.

I purchased two of these Air Purifiers in April of last year (currently February, ~10 months later) and am extremely pleased with the results and effectiveness of the product. I live in Brooklyn, NY in a railroad style apartment (one side facing street near-ish a busy road, the other side facing an interior courtyard) and I purchased two 311i Maxs. One is in the the threshold between the kitchen/living area and bedroom area and the other is in the main "bedroom" that faces the street. The threshold between rooms is high traffic, so lots of dust and particulates get swept around when I walked between the rooms of the apartment. Immediately I noticed that the dust accumulation in the living and bedroom area became much more gradual. The purifier itself also traps a TON of dust clumps on the cloth outer filter that needs to be cleaned periodically but I am happy to know that it is certainly doing its job. The bedroom purifier also is doing well, but its a much lower traffic area of the apartment so it doenst need to be cleaned as often. The advertised filter live is 6 months. However, after 10 months the high traffic air purifier's filter is just about at 15% and I purchased a replacement. For context, I run it constantly at its lowest setting and have it automatically adjust to a medium high setting for two hours each evening from 5-7pm (this is usually when I am cooking and honestly, not even sure if this is necessary). I am extremely impressed with the durability of the filters in this capacity. Noise wise, I couldn't be happier. They certainly have gotten marginally louder over time (likely due to filter age) but really not bad at all. My (aging) refrigerator's cool cycle is louder than these things. I'm an audio engineer so I use my ears for a living and am particularly sensitive especially when I am working or trying to go to sleep. Not only is the purifier's noise imperceptible from more than 10 or so feet away, but I have on running all day in my studio where I work and I don't have to turn it off except to record exceptionally quiet sources. To be fair, this is all on the lowest setting. The higher settings are certainly noticeable, but about the same volume as my Mideas air conditioner. The app also works great. When there was renovations happening in the apartment below mine, I was able to periodically check in on the particulate levels while I was out for work and adjust the purifiers intensity as needed to make sure no unwanted drywall or wood dust settled in my apartment. The indicators on the units are helpful as well to see the air quality change when cooking or lighting...erm "incense" and know that the purifiers are doing their job and keeping the house clean and odor free. You can have the filters auto-set depending on particulate levels but honestly, they work so fast at the lowest setting I rarely find myself manually upping the intensity of the fan unless there is a serious cooking/smoke mishap or something similar. You're probably better off just keeping them on low 90% of the time. Recommend these to folks all the time as I do to you, dear reader.

This review is for the BLUEAIR 211i Max (large room, 3048 sq ft) Primary reason for the purchase...dust. A film of dust always seems to end up everywhere, mostly because of vacuuming area rugs, lint from blankets in the room, and a wood pellet furnace in the basement that heats the whole house during the Winter. The 211i boasts 4 layers of filtration, HEPA/AHAM certified, and can filter up to 3200 sq ft worth of air within an hour. My home is approximately 2500 sq ft, 2-story. I would say the filter makes a noticeable difference especially on the first floor. Less dust settling on surfaces, and it deodorizes the air fairly rapidly when cooking. No one smokes inside the home, but in order to test the sensors, my wife lit up a cigarette briefly from another room, then headed outdoors, so only a trace amount of smoke would permeate the air from a distant room. Within a minute or two, the PM2.5/PM1/PM10 readings shot up from 0 to over 50 (which is polluted air), and the fan could be heard ramping up inside the unit. That proved the sensors were responsive and quite sensitive. About 35-45 minutes later, the readings returned back to 1, then to 0, demonstrating that the unit circulates and filters the air inside the home rather quickly. When cooking, the sensors also go on the uptick and the fan ramps up. Despite what the other reviewers have posted about the sensors, they seem to work surprisingly well. As for noise, on Auto mode, the fan speeds generally stay below 3, and the unit is practically inaudible. Turning the fan up to its max speed, 4, the fan can be heard but even when standing next to the unit, the dB noise level is barely over 50dB, which is about the noise level of an office or library. I've attached a screenshot of the dB measurement, with my phone placed directly next to the unit during measuring for 15 seconds. This is within the advertised specs of 23-53dB. Note that other background noise within the room added to the dB reading, as the room has a humidifier running constantly within it as well. The 211i Max is about the size of a small trash can, so it can be placed just about anywhere. I'd recommend keeping it at least a couple ft away from walls, otherwise the 360° filtration will be somewhat reduced when it's against a wall. The more open the air space, the more effectively the unit will circulate air. When initially taking the 211i Max out of the box and setting it up for the first time, I would recommend running the fan on high (4) for several hours to get a total air cleaning, then flip it to Auto mode and it'll make fan speed adjustments on its own based on air quality. I had zero problems getting the 211i Max onto my Wifi network and going through setup using the Blueair app. The readings generally take a few seconds to show up on screen whenever the app is launched, but the app is very easy to understand and use. Within minutes of connecting to Wifi, the 211i Max updated its firmware and rebooted. Overall the Blueair 211i Max is perfect for a medium to large room, or an entire floor of a 2000-2500 sq ft house. It's very quiet on Auto mode, and the sensors seem highly sensitive to pollutants in the air. Cooking, even trace levels of smoke result in a quick change in PM readings. Highly recommend for allergy sufferers or those who want clean air inside their homes. Docked a star for expensive filters, though they only need to be replaced once a year.

Purchased this Blueair Hepa air purifier almost a year ago and it has worked very quietly and efficiently, keeping our home air fresh and almost allergen free. (Air will never be totally allergen free due to leaky doors, windows, etc.) Noticeable difference especially with the wildfire smoke that many countries are experiencing. It is interesting to hear it automatically speed up when you are cooking something smokey. I like being able to control it or check in via iPhone. HEPA filter is combined with carbon filter to remove odours. Easy to change filter and relativity inexpensive to replace, also there are many after market filters that are cheaper if you wish to go that route. There is also a cloth pre-filter which you can remove and wash as required to extend the life of the main filter. Lighting on it is also dimmable. Very attractive and highly recommend.

Very effective, works well and easy to use. This purifyer is helping me everyday from nasty allergens from cigarette smoke. I just moved into a building with big smokers and poor ventilation. I knew about my cigarette allergy but I hadn't known how severe it had become. This purifyer is ideal for all kinds of smoke, from cigarettes to forest fire smoke, because it has a carbon filter. I leave it in automatic mode and it filters the air using very little energy to keep the air to "excellent quality". There is a light that changes color to inform us of air quality. When it's blue, I know I can breath easily. You can hook this purifyer to your Wi-fi and use special app to manage it, but it's not necessary. I'm using it without it and it's going very well. It's very quiet compare to my previous one I bought 3 years ago. The filters aren't cheap and it needs to be changed every 6 to 9 months. I haven't had to change it yet, but I'm hoping it lasts as long as possible and that there won't be any problems. I'll edit this review when it's time for a change.

Great machine. You pay for the quality but it's quality you get. I use it in my bedroom for allergy season. On night mode, it is impossible to hear. On level one, you can barely hear it. I keep it on level one. Automatic works well - the speed increased when I had a smoky air fry. The design is nice, and well thought out. The fabric prefilter is super easy to remove and wash. The Bluetooth connection works well and it's nice to see the current and history of how clean the air is. There are no cons here. Great unit.

I've had this air purifier for a few months now, and it has made a huge difference. Highly recommend! Even on the most powerful setting, the sound is hardly noticeable -- and this was something I was really concerned about. It's whisper quiet. And it works incredibly fast to remove cooking smells and odors.

J'ai récemment acheter ce purificateur d'air en remplacement de mon ancien Dyson. Je préfère de loin celui-ci . La compagnie Bleuair fabrique des purificateur d'air pour des pièces de différentes superficie, donc en fonction de la pièce il y a un purificateur d'air adéquois. Les deux possède un application de semblable fonctions, les deux possèdes des filtres HEAP L'une des différence que j'apprécie c'est le diffuseur contrairement à Dyson ce dernier .ne renvoie pas l'air filtrer sur vous mais par le haut donc vous ne sentez jamais l'air rejeter. Je possède deux autres purificateur Dyson que je remplacerai par Bleuair sans aucune retenue