I purchased this a couple of weeks ago, and I'm so happy I trusted the information on this purifier and took the plunge! There are so many on the market so you just never know! It is extremely quiet as stated, and I was shocked to know that not only could the filter (3 layers) be cleaned but it lasts 6 months! I have never had any filter for anything lasted that long. I did purchased an extra filter so I'm good for a year! Our area is known for bad allergies so I run this every night in my room and can tell a difference in the morning with lighter nasal congestion if any at all. I'm allergic to cats but have two so this has been a huge help with cutting down on their dander I'm inhaling. It is very modern looking for lack of a better word, small so it doesn't take up much space and it's powerful!  Five Stars!