I just didn't realize that my house smelled!I ran the Honeywell Air Purifier for one day while I was out and I came house and I couldn't believe my nose!I didn't smell all of the smells that I had become use too,there was just a house that smelled like new air.My sinuses were better and my head was clearer,I just fell lighter and breath better.The purifier is small enough that it does not take up any room and it is quite,so you don't even realize that it's on.I wish that I tried one sooner!