I purchased these air purifiers for my both of my children as well as myself for our homes as a Christmas present. We all love how sleek and nice they look, how quiet they are and how effective they work. They are so quiet and they work so effectively very quickly. My two grandchildren have sinus issues and their mother has complimented on how much she has noticed has fast they have worked. They have only been using them since Christmas. I would highly recommend them to anyone looking for a nice affordable, sleek, stylish looking effective tool to add to the their hiome. They will love it too! Nice addition to your home!