Very satisfied with this product so far. It was easy to install, quite and seems to be effective. I’m using it in my place of business and It’s really a noticeable improvement in air quality. I’m using the Alen BreatheSmart 75i with B7 fresh filter. The purifier fits nicely into the space I had planned for it in my business. I went with the white version to compliment the white walls in my business.