The Holmes® Personal Space Air Purifier is suitable for people who are prone to allergies or asthma as it eliminates odor-causing bacteria smoke and pollen. The ionizer assists in capturing larger particles such as dust pet dander and more. This Holmes® Personal Space Air Purifier has two speed settings to meet your needs and features a multi-stage filter. The compact purifier is simple to place on a floor dresser counter or in a hallway.