BLUEAIR Bedroom Air Purifier, Air Cleaner Dust Pet Dander Smoke Mold Pollen Bacteria Virus Allergen, Odor Removal, for Home Office Kitchen, Washable Pre Filter, HEPASilent, Medium Room, Blue 311 Auto

Product looks good and works nicely and has a light that tells you moderate and good air levels but its very difficult to register. You need to provide serial number. i looked everywhere on the product, on the accompanying paper work, on my invoice and there is no serial number. Threw the box out but I dont think it was on it. So how does one register? Online there is an i next to serial number but no it doesnt work. You search on Blue air website, and there is not information. You call and you sit there and listen to long wait times and listen to music. So why drive th customer Crazy for such simple thing?

We had a catastrophic flood in the basement of our house which caused dust, dirt, and mildew to permeate everything. A friend suggested this air purifier and we could not be more satisfied. Right now it sits in the kitchen - near the basement stairs - and, when the workers come and start hammering, sawing, etc. it immediately turns itself on to a higher speed. Very impressive. We will be buying more of these for other areas of the house.

I’m really delighted with my BLUEAIR Blue 311 unit. I went into the purchase expecting false advertising and was very happily proven wrong day 1. I’ve had it over a month now, just enough time to get to know it. When I light up in the house at night it turns up it’s intake, and the little light changes from blue to orange. That’s fantastic but even more impressive is that it somehow detects when my cat goes in the cat box and up it cranks. It has a bit louder sound in super clean mode, but it’s not very noticeable. I remember the first time I noticed it had cranked up and said to my hubby, that’s the air filter? I thought maybe he left the faucet on. Very quiet. Allergy season has been slow to bother me this year, eliminating my need for antihistamine despite the fact that my car has a green coating from our neighbor’s pine tree. It’s not a small unit, about 2 feet tall by 1 foot round, you need space for it. I didn’t mind, odors bother me more, I made the space for it. If you want an excellent air filtration unit you will love this one.

I share an office with a smoker and was often hit by the smell of stale smoke when I walked in. The office itself also began to smell like smoke. I bought this filter for its size and look that blends in with the other furniture. I can still smell stale smoke when I pass my coworkers desk, but the smell no longer reaches my desk and the office is back to smelling like nothing!

Its nice, but that sticker on the top of the power button when its new is quite difficult to remove

Switch hard to press and get the correct cycle.

Being an extreme allergy sufferer, this is not my first trip to the air purifier rodeo. After reading reviews, I decided to try this unit out. It has performed wonderfully so far. And is by far one of the quietest units I have owned. The fact that it has an automatic air sensing function and will run accordingly is also a pretty great feature. So far my air quality is better as is my breathing and allergies

This air purifier is quiet and unobtrusive. There isnt a light to indicate that its running after youve initially turned it on and Ive stumbled over it in the dark. It was highly rated on many lists which is why I purchased it. My only complaint is you get no indicator of air quality. My other air purifier has a light indicator of air quality. The filters are also pretty expensive.

I purchased 2 different air purifiers one for my bedroom and one for my living room. I continued to notice that the bedroom still smelled like sleeping humans so I switched the 2air purifiers around. OMG what a difference. I’m a believer. I went to the grocery store and let it run, when I got home and walked in the bedroom I was so impressed. Highly recommend. I love this thing. I love fresh air and now my bedroom doesn’t smell like a closet! ❤️

Have a small 45 year old 1200 ft cabin in the woods and shopped for air purifier that would work with seasonal pollen, cat hair/dander from two cats( and litter pan odor), woodstove smoke/ash, occasional kitchen cooking pollution. Lots of claims out there in wide range of prices...this one,far from cheapest, or priciest, seemed to offer quality needed to address enviromental indoor air polution. Liked 2 phased filtration,charcoal for odors, and that filters lasted 6 mo rather than 1. Located in sleeping area,quiet operation a plus. Have had unit for 6 months now, and just replaced filter,which was autoshipped from mfg,as i did not trust the cheaper knockoffs that would fit,but questioned getting same results. Set filter replacement auto ship, was favorably impressed to speak with rep in understandable english without waiting on perpetual hold,and registered warranty at that time. First time i fried bacon,smoke carried into living area and demonstrated the sensor/detector in action,works as advertised. This unit has meaningfully enhanced indoor air quality in times of ever increasing pollution, providing better quality of life/living... highly recommend.