Breathe in cleaner airfree from allergens and impuritieswith this Holmes Air Purifier. It cleans air in rooms up to 100 sq. ft. and uses HEPA filter to ensure removal of household dust, pet dander, pollen and dust mite debris. Holmes 200-watt air ionizer and carbon filter has 2 settings, and the HEPA filter lasts 3-5 years. CADR-certified. Filter included.