- BLUEAIR Blue Pure 311i Max Smart Air Purifier for Medium Rooms up to 1,800 Sq Ft HEPASilent Air Cleaner for Pets Allergies Smoke & Dust WiFi Air Purifier with Auto Mode Quiet Air Purifier for Bedroom

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.

I’m really impressed with this air purifier. The design is modern and compact, so it fits perfectly in my bedroom without taking up much space. After using it for a few days, I noticed the air feels much cleaner and fresher, especially at night. One thing I love is how quiet it is. Even on higher settings it doesn’t disturb my sleep, which is very important for me. The controls are easy to use and the build quality feels solid and well made. If you’re looking for a reliable air purifier for your room, I definitely recommend this one. It’s efficient, stylish, and does exactly what it promises.

The Blueair 311i Max has been a great addition to our bedroom and has dramatically helped air quality having pets and as someone with typical seasonal allergies. Setup was easy and intuitive, and connecting it to the app was straightforward. The design is modern and clean, so it blends into the room instead of looking bulky or industrial. If you are researching air purifiers, it is important to understand how coverage ratings work. The large square footage number is typically based on running the unit at maximum speed and achieving roughly one air change per hour. In practical use, most people run these at lower speeds for noise and filter longevity. For meaningful air cleaning, around 4 air changes per hour is commonly recommended, and if you are more sensitive to allergens you may want even more. These units are designed to clean a room, not an entire home, so sizing appropriately is key. In day to day use, this model performs very well for particulate matter (PM) like dust, pollen, smoke particles, and general airborne debris. Auto mode responds quickly to PM spikes and adjusts fan speed accordingly. On lower speeds it is very quiet and unobtrusive in a bedroom. At higher speeds you will hear airflow, but it is smooth and not harsh. What is nice is that it has a power loss recovery where it will return to its last set mode when power is restored in case of a power outage. One thing that really stood out to me is how much dust, hair, and other allergens the pre-filter alone traps. It is honestly a little shocking and really puts into perspective how important a quality filtration system is. Even with consistent pre-filter maintenance, when I eventually replaced the main filter it was clearly very dirty with trapped particulate matter. That alone justified the investment. For maintenance, you can vacuum the worst of the trapped debris off the fabric pre-filter, but a proper wash is really recommended. Just slip it off, wash it, let it air dry or gently tumble on low, and put it back on. The app will remind you about filter life and maintenance, including pre-filter cleaning, which is helpful. When it was time for replacement, I switched from the standard filter to the Allergen version. I have been happy with its performance, although I did not notice a dramatic difference compared to the standard filter. Moving forward, I may go back to the regular filter depending on availability and cost. Blueair also offers a SmokeBlock option with a higher carbon density if VOC/ odor control is more of a priority. It is worth noting that this unit focuses primarily on particulate filtration. While it will help somewhat with Volatile Organic Compounds (VOCs) over time, serious VOC removal requires a significant amount of carbon or carbon zeolite media, which brands like Austin Air are known for. Something I am considering in adding to further improve home air quality. The app is well done and practical. It shows general PM trends, logs spikes, and allows manual control. Being able to adjust it from bed is a nice convenience. It has an auto mode, night (turns off less) and then 3 manual fan speeds as selectable options on the device. App will provide you with some additional timers options, smart location options to turn device off and on when you leave the home etc and gives a little more granularity to the fan speeds allowing you to dial in a speed that you like. I don't use these all I will usually leave it on Auto or manually set a speed. Overall, if you size it correctly for your space and expectations, this is a well-built, effective room purifier. It looks good, runs quietly, is easy to maintain, and delivers strong particulate performance. I would definitely recommend it for bedrooms or medium-sized living spaces where clean air matters. I am very happy with this purchase!

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.

We liked how easy it was to setup and the style We have not had a event for the usefulness of the it as our air has been clean and no smoke at this timeout Our home air seems fresher

Purchased to help with airborne allergies and seems to have helped. I’ve been using it steadily since receiving it a few weeks ago and usually just leave it on the automatic setting. It seems to sense air changes well since it kicked into high gear when I was cooking pancakes (I do not have an exhaust fan in the kitchen) and then turned back down a little while after. I love that it can be controlled with my phone and that I can get a report on the air quality through the day. I have a family of four plus two new cats in a 1000 square foot space so it can get stuffy quickly but I’ve noticed that the house smells much fresher with this unit. One caution though, the fabric exterior is very enticing as a scratching post for cats so we had to put it up in a stand to keep it out of reach. All in all I am very happy with my purchase and would buy it again.

My husband has seasonal and dust allergies, and suffers with some pretty considerable symptoms every day, year round, and this brand was highly recommended. I'm glad I chose the 311i Max model which can clean a much larger space, such as one floor of our house. My husband experienced an immediate improvement in his symptoms. The app is helpful. I love being able to track particle levels in our home, and it's amazing how closely my husband's symptoms track with the pollutant levels it displays. I see big spikes on the app display whenever our air conditioner kicks in - then my husband's symptoms gets really bad for a little while until the air clears. So the app display helped us understand that we need our vents cleaned. I'm not sure I love auto mode. I've got to watch it more closely for a while to be sure, but I don't know if it really speeds up the fan fast enough when there's a spike in indoor pollutants. Overall I love it though. It's improved our lives. There's so much less sniffling, sneezing, coughing, and watery eyes. We now drag this thing to our bedroom every night, and to our main living space every morning, so I'll keep an eye out for a good sale and likely get a second one.