Kaz Tower HEPA Air Purifier, White: * 5-in-1 air purifier with True HEPA filters that capture up to 99.97 percent of microscopic particles * Premium odor-reducing pre-filter * Quietly circulates room air in a medium to large room up to 5 times an hour * Easy to use controls feature 12 cleaning power levels, so you can customize to your specific air cleaning needs * 1-18 hour auto-off timer * Electronic filter gauge and light indicate when it is time to check the filter * Optional on/off oscillation controls * ARB Certified to comply with the federal ozone emissions limit * AHAM certified for use in rooms up to 170 sq ft * Certified CADR ratings are: 110 for tobacco smoke, 120 for dust and 130 for pollen * 3-year manufacturer"s warranty * Model# HPA245