Improve your indoor air quality with the largest and most advanced air purifier from Hunter. The Hunter HP980 AirMax is the perfect air purifier for large spaces such as a large home, classroom, office, or even an industrial environment! The AirMax Industrial Strength Air Purifier and can clean the air in a 640 sq ft room 4.8 times each hour or 115 times each day. Features Silver nanoparticles in the EcoSilver® pre-filter prevent the growth of microorganisms on the filter, including bacteria and viruses, and removes harmful VOCs (volatile organic compounds). The True HEPA filter removes up to 99.97% of airborne particles as small as 0.3 microns in size including smoke, dust, pollen, pet hair and dander, mold spores and dust mites. Granular Coconut Carbon helps reduce household odors from cooking, cleaning, smoking, and pets. VOC and Particle sensors indicate current air quality 4 fan speeds: low, medium, high, and turbo Auto mode uses information from the VOC and Particle sensors to automatically adjust fan speed based on the current air quality. Sleep mode turns off the ancient lights and lowers the fan speed to low for 8 hours, then adjusts back to the original setting 360-degree air intake Energy Star certified to lower energy consumption Remote control Soft-touch digital control panel Timer function to control the desired amount of operation time from 1-12 hours Filter replacement indicator to remind you when it is time to change the filters Optional LED accent light for ambiance or nightlight Wheels for easy transport What You Get: Air Purifier True HEPA filter Carbon pre-filter Remote Control User manual Manufacturer's warranty Specs Brand: HunterRecommended Room Size: 640 sq ft.Clean Air Delivery Rate (CADR): Smoke: 434, Dust: 434, Pollen: 441Filter Replacement: Recommended to change the HEPA filter every 6-12 months and the pre-filter every 3 months, or more often depending on air quality and environmental factors User Manual User Manual in English