Works really well, good value for money though I wish it had more speed settings and an air quality sensor, like competing products (which do admittedly cost more..)

Perfect solution for my allergies not to big and quite on low setting when sleeping

I'm very happy with my BlueAir Pure 411 air purifier. I've had it now for a couple of weeks and it really has helped with my husband's hayfever. It's very quiet on the first setting and so it's ideal in the bedroom at night. It's easy to move from one room to the other and it freshens up the air when I have been cooking in the open plan kitchen/dining room. The purifier is quite noisy on the maximum setting, but I think the only downside of this useful little appliance is the cost of the £20 replacement filters every six months.

got this to try and keep the dust from spreading around the house as I'm lifting floor tiles, it's brilliant so good I have now got 2 and a set of filters. The outer cloth filter catches most of the dust and dose not have to be right next to were your working. On it's lowest setting it's silent, at least to me. Got the second one to clean the air around the house.

Very quiet and leaves the air noticeably clearer.

Bought for my daughter's pet and dust allergies. We have 2 cats and one of them seeks her bedroom a great deal! The purifier is lightweight, quite large in size, but seems to be effective after leaving it on all the time on the lowest quiet setting. Cool air comes out of the top of the machine. The air certainly seems fresher in her bedroom after a week of constant use. Her allergies seem to have lessened as well. I believe this is worth the money.

Fantastic little air purifier that doesn't take up much space at all. The lowest setting is barely audible. Great for a small/medium sized room, I run mine for a few hours in different rooms

I purchased the Blueair 411 for my dad as he has a smokers smell from the flat above. I did try it, it works well, simple to operate, one centre touch button to control the three speeds. My dad reports that it does help with his smoke smell problem, the air is a lot better when the purifier is running.