Customer Ratings & Reviews

Very easy operating and the unit is lightweight. Blue air is one of the and this isn’t bad for the price.

My favorite air filter - quiet , hella clean , easy to work / use!

I didn't expect much, really. But this air purifier is amazing! I placed it in a large area between two rooms, hoping that maybe it would cut down on the dust in the house, set it on auto and left it to do its thing. It has not only reduced the dust noticeably, it also recognizes and responds to an increase in dust in the air from two rooms away! Using baby powder in the back room will actually trigger this purifier to recognize the air quality has gone down, and it kicks up the speed until it clears up. Changing the cat litter in the other back room (down the hallway) will also trigger an increase in the speed. I'm so impressed! I keep it on auto and the vast majority of the time i don't even notice its running. You definitely hear the fan when it kicks up to the "orange" or "red" indicator light levels but it's not loud enough to be disturbing to my family. After it clears the air the fan speed reduces down to almost silent again. This purifier is worth every penny, and I'm going to buy another to place in the back bedrooms area.

Cleans the air and gets rid of odors including animal odors

Quiet, effective, attractive and efficient air purifier. We trust this manufacturer as we have had flawless and trouble free experiences with the larger 211 units and the smaller 411 units over the past several months and have deployed several of them, appropriately, in our home, offices and lab. We expect this intermediate size unit to operate similarly. So far so good….

Quiet and efficient . Meet all expectations will look to buy another for summer home

Quiet, efficient, looks great in the living room and definitely improves the air quality.

One for each bedroom and main room, saw the dentist office and hospital testing rooms use’s floor filters, not the manufacture I have.

Quiet and easy to operate, remarkable with HEPA filter.

Seems good. the pollution level reads fine, It kicks in when needed and its quiet on low mode but not on medium or high speed.

It works great. I'm able to breathe better at night.

Product is quiet & light weight & design is complimentary to most home

Good air purifier has a nice design and has an automatic mode that detects the air quality.

Good product, Easy to use, love it, very good sensor.

My congestion disappeared within several hours of starting to use this air purifier, just as the reviews I had read stated. The air is so fresh and dust is minimized. Wonderful product which lead me buy a second 411 model for another bedroom, then a 311 model for my living room. Excellent products which really deliver results.

I think it is doing what it is supposed to. I wish the controls were better, maybe 1 light for low, etc. I can't count 4 or 5 pushes and know where I started or where it is. It is lightweight and arrived well packed for safety. I also wish there was a light or something to tell when the filter is full. With 3 cats, I may clog it up quickly. It is quiet.

I already own a 411 and a 411 auto, adding this 311 auto for my office is great. I hate big dust particles getting everywhere and the bigger one is doing a great job circulating air in the room while clearing out the big stuff. It's way bigger than the 411 model, I like it.

Works good easy to use simple and seems to work well with dust

Excellent Filtration, better and faster than my Dyson which was 3 times the price, setup took 2 minutes. It's plug and play and easy to use. In my son's room I set the sleep mode which does not disturb him at all.

This is my second unit purchased for my bedroom since the first unit was cleaning my living room air so we'll. Love the air indicator and auto speeds. Cost of ownership is really great when compared to other units out there.