Review Content Pleased Customer My wife has seasonal allergies. Im hoping this unit provides her with relief from the spring and fall misery she suffers every year. Powerful, Quiet, and Smart I love the fact that this machine lets you know itis working, with the smart air quality monitor it gives a red light when air is bad and dablue liehgt when good. If you set it to auto, it works all by its self. You do not have to do anything. It is quiet and has really helped with my allergies. I love this thing! Excellent air Cleaner after 6 sinus surgeries, and having such a horrible allergy, I noticed after a few days that I was breathing easier now and not sneezing first thing in the morning for hours on end. Great Product I run my air purifier 24/7 and it works amazingly. It is quite nice looking; however, it is quite large. It is a sound investment.