It is very cheap purifier and only covers a 200 sq.ft area, a small room for instance. The rest of your house will not benefit from it, plus the filters will get clogged rather fast, costing you a bundle in the long run. I strongly recommend you get a whole-house purifier like FreshAir by Ecoquest which covers 3000 sq. ft home. Let me know if you are interested in getting more info on this purifier and sanitizer.