Perfekte Raumluftüberwachung - geräuschlos und unauffällig

I bought this hoping it would help with pollen allergies during summer months. Sadly it made no difference. Neither has it affected the amount of dust that settles in the room. Another negative is the noise; a fan setting of 1 or 2 is bearable, 3 is inexplicably whiny, 4 to 10 are too noisy to use for anything more than a minute or two. This is a puzzle as I have other fans (without filtering) in the house that manage to shift a lot more air and are still quiet. I expect more from Dyson. On the plus side it looks OK, doesn't use a lot of electricity, and is easy to control on your phone.

I think it's got a censor that checks the air quality and adjusts the fan strength according to the aqi! I didn't expect that! I did crank it up to max one day to see what it can do and it was not very loud in my opinion. The phone app will help you keep track of when it is time to change the filters.

Haven't used much yet, but SO quiet. Easy setup. App control is intuitive and good option. Advertised ling lifespan of filters is a bonus.

This machine is very quiet. It increases airflow when filtration is needed before I am even aware (like just regular use of toaster without a burn!). I’m in awe of the sensitivity.