What a fabulous invention! Unlike other air purifiers out there, the PURXIUM air purifier comes with washable, reusable filters which saves a ton of money! Most importantly, the filters are high-quality in order to reduce allergens and all of the dangerous things you don’t want to breathe. I was totally surprised to discover that you only need one air purifier for 1000 ft.² -  I only need 1 to keep the air in my entire downstairs clean! I also love that it’s not too heavy, has a timer, and it has four different speeds for the fan. I highly recommend this!!!