Blue Pure 511i Max Smart Air Purifier for Bedroom & Small Rooms up to 926 Sq Ft, HEPASilent Air Cleaner for Pets, Allergies, Smoke & Dust, Quiet WiFi Air Purifier with Auto Mode

I recently got the Blueair Blue Pure 511i Max Air Purifier for my home, and so far it’s been working great. Right out of the box it was easy to set up, and after running it for a few days I could tell the air felt cleaner and fresher with less dust and airborne particles floating around. One of the strongest points of the Blueair Blue Pure 511i Max is how quiet it runs. Even on moderate fan speeds, it stays unobtrusive — perfect for bedrooms, living spaces, or any area where background noise matters. It uses Blueair’s HEPASilent technology to pull in air from all around the unit and effectively capture dust, allergens, smoke particles, and pet dander. It’s designed to clean up to around 926 sq ft of air in one hour, which makes it a solid choice for larger rooms or open floor plans. I also appreciate the filter performance — it feels efficient without feeling like the airflow is restricted. Although it’s compact, it doesn’t feel like a small unit; it feels like it’s doing meaningful work when it’s running. Several friends I’ve recommended it to have noted reduction in odor and pollen after a couple days of use. In short, if you’re looking for an air purifier that’s easy to use, effective, and quiet, the Blueair Blue Pure 511i Max is worth it. I’ll update with photos and a short video soon once I’ve had more time with it, but so far this has been a strong addition to my air quality setup.

So far, this air purifier has been excellent. The app is very detailed and easy to use, and I like how it explains the readings and what each level means. The technology is great, and the system actually adjusts on its own when windows are open, while cleaning, or when cooking. I do prefer the smart display on the larger unit, but this definitely gets the job done for bedrooms. It runs much quieter than it sounds in up-close videos, even on higher fan speeds. The air feels noticeably cleaner. We have noticed a difference in stuffiness and allergies. We have one large unit for the main floor and two medium ones for bedrooms. I plan to buy at least one more large and three more medium units because they work that well. Great value for the price and quality. I run these all the time at the moment, but love the option to schedule. The size is perfect for a bedroom.

Blueair Air Purifier was the one I chose because it uses original HEPA filters, along with the strong reviews I read on Amazon and elsewhere — and I am extremely happy with our purchase. I placed it in a room filled with storage boxes that had a musty odor, and it completely eliminated the smell. It runs very quietly, and I truly believe it helps remove dust and allergens from the air. I purchased it during Prime Day and received a great discount, so I’m very pleased with the price as well. If you’re looking to bring freshness to any room in your home, I would definitely recommend Blueair. It truly delivers.

It's really nice to have, bigger than I expected, but that's even better. It works nicely, and I enjoy having a way to see the air quality on my phone. I used to always get a runny nose due to dust in my room whenever I cleaned, but this has helped me not get as many runny noses anymore. I can see very little, if any, dust in the air (like when you see it in the sunlight). I tested it by blowing out a match in front of it to see if it really detects stuff; it went to max fan speed, which makes me believe this is working. Speaking of fan speed, it's really cool and nice to feel; I honestly replaced my AC with this most of the time. The main reason I would not give it 5 stars would be the lights. I hate sleeping with any type of lights, and whenever I change it using the buttons, it sometimes leaves a light on even in night mode, which in turn I would need to fix by going on the app, which allows me to turn it off. Other than that, the air feels very fresh, and I can hardly smell anything; it feels clean and nice in the room I use it in. It does need to be connected to an outlet instead of battery, which makes it hard to put it in the middle of the area without a cable being in a way, but for it's price, i would say it's really good, the filters aren't too expensive and I would only need to replace them once every 6 months based on how much im using it.

This air filter is perfect for my room. I really like the WiFi enabled features that allow me to control the filter without getting up. Turning down the display brightness was good for sleeping. This unit is quiet and easy to sleep when on setting 1. It’s set up to increase speed during the day and slow down at night.

I waited six weeks to write this review so I could get a good feel for this 511i Max since it was a replacement for my Levoit 131s that randomly stopped working just short of the 3yr warranty. First, the app: Simple download and easy set-up. Setting up schedules is a snap and there’s a feature where you can turn on your location so it’ll refresh the air right before you get home (haven’t tried it yet but sounds cool). Noise: A+ I used Decibel X on my phone for the best I could manage and at level 3 (the highest setting) it registered 55.2 decibels (which is halfway between “a quiet home” and “a quiet street”) Level 2 — 44 decibels (white noise level/halfway between Quiet Whisper and Quiet Home) Level 1 — 35 to 40 decibels (halfway between rustling leaves and quiet home) Night mode: 32 to 33 decibels (“rustling leaves”) Suffice to say: this air purifier is quieter than my roommate’s nails clacking on her keyboard in the office across the hall from my room with the door shut even on “High”. I sleep just fine with the schedule I have it on (auto is fine “night” mode isn’t required but drops the decibels a tiny bit more). Air Quality and Movement: in a 64 sq ft room I don’t “feel” the air moving until I put it on level 2 or 3, but it smells fresh enough that I don’t need to do that unless I want to help out my ceiling fan with circulation. I’ll try to come back and update how long it lasts but my last air purifier (not this brand) was perfectly fine until one day, nearly three years into owning it, it stopped working and gave me flashing lights.

Casi no hace ruido, funciona perfectamente. Lo recomiendo.

Love the look of it. Fan is quiet. Shows the air quality on the app. Only one I found that promotes cleaning the air of mold.

Works great and even on the highest setting is pretty quiet. Seems to help keep the allergies down and there is less dust. Removes kitchen smell extremely quickly and the sensor seems pretty sensitive.Easy to change the filter and replacement ones you can find third party sellers. Very happy with the unit.Only slight issue is wonky app.

EL PURIFICADOR ES UN EXCELENTE FILTRO DE AIRE. YA QUE PURIFICA EL AIRE DE TU ENTORNO. IDEAL PARA GENTE CON ASMA Y/ O ALERGIAS. MUY RECOMENDABLE

No sé si puedo recomendarlo. Si se encuentra en modo automático casi no se siente el flujo de aire entrar y salir, aunque es evidente que hay polvo en el cuarto donde está ubicado. El prefiltro está muy limpio a pesar de haberlo usado diario durante más de un mes. Leyendo me di cuenta que detecta solo PM2.5 que aunque son las más partículas más graves, al no haber ese tipo de contaminación en la habitación , aunque haya polvo u olores el sensor no se activa para que funcione con más intensidad cuando está en modo automático. Vivo en una ciudad contaminada y checando los registros mensuales según este purificador la calidad del aire interior estuvo excelente en el 98% del tiempo. Cuando registró algún pico fue porque apague una vela justo a su lado y ahí si entró el sensor, lo que me dio idea de que no está dañado, simplemente así es. Si lo quieres para filtrar polvo no lo recomendaría. Comparo con otros purificadores que tengo en mi casa y a los cuales constantemente tengo que estarles limpiando los filtros y éste no se compara.