Electrolux Oxygen 3 PlasmaWave Purifier

I absolutely LOVE this machine. It automatically senses when there is a change in air quality and adjusts automatically. I have to say that if you are looking for a quiet machine, this is very very quiet. I have owned this for a few weeks now and thought I would wait until I used all features to give my review. We are very happy with our purchase. We don't even know it's on unless it revs up to filter the air. And even then at it's highest setting it sounds like a quiet well-balanced blade fan. We are keeping it in a 14 x 17 room with cathedral ceilings and see a large reduction in dust and odors. I have had it in my bedroom too and the only thing I have to say is that if you need a blacked out dark room to sleep in, then you might want to cover the lights at the top of the machine...othewise, it makes a nice blue night light for those of you who need it. I haven't had any problem with any type of reverberation noise or uneven sounds---it's great. Highly recommend this to anyone.

I am a Social worker (homeless population), there are stationary window so this has been a life saver.I feel the air is so much cleaner and fresh. Kind of pricey but worth it. A great looking unit -sleek and modern looking.