Take a deep breath with the Holmes Mini Tower Air Purifier. This air purifier features an optional ionizer which ensures particles are more easily captured while also tackling odors. A filter viewing window allows you to actually see the particles being accumulated. It helps protect against allergens such as dust mite, mold spores and pet dander. The slim tower structure is designed to fit into any corner of a room unobtrusively and still effectively treat the air around you. Color: Black.