I searched the internet for days, read reviews, and made comparisons, to find an air cleaner that fit my needs! Although skeptical even when I first got it, I bought it anyway. Originally, I bought it for me, since I'm the one who has difficulty with smelling certain chemicals, perfumes, and powders. My husband who tried it while sleeping one night, said he really liked it and slept better with it, asked me to buy him one also. We are very happy with the quietness, the timer, and the performance of this unit. I will be taking it when I travel, especially when I go to a hotel that has rugs, and or chemical smells. The unit has filters you can buy for specific functions. It's also great in the summer because it blows cold air, which does not counteract the AC.