Luma Comfort AP170W PureClean HEPA Air Purifier with 5-Stage Advanced Air Cleaning Advanced Pure Clean 5-step purification system effectively reduces odors and removes over 99-percent of pollutants Purifies up to 170 square feet Controls a wide range of contaminants, including dust, pet dander, smoke, chemicals, mold, bacteria and more Uses no more electricity than a standard household light bulb Purification Methods: HEPA filter, carbon pre-filter, UV light, TiO2 filter and VOC filter