Luma Comfort AP400W HEPA Air Purifier with 5-Stage Advanced Air Cleaning for 400 sqft Advanced Pure Clean 5-step purification system effectively reduces odors and removes over 99-percent of pollutants Covers larger areas up to 400 square feet Controls a wide range of contaminants, including dust, pet dander, smoke, chemicals, mold, bacteria and more Sleek, elegant flat panel design matches any dcor in your home  ideal for a bedroom, study or living room Low maintenance  filters are easy to replace with no tools necessary