Summary Auto Mode: The laser dust sensor detects airborne contaminants and adjusts fan speed accordingly. Air Quality Updates: The air quality indicator ring keeps you up to date on your air quality. True HEPA Filtration: Traps 99.97% of fine particles 0.3 microns in size, including pollutants such as pollen, dust, and smoke. High Performance: Covers up to 442 ft2 / 41 m2. Ultra Quiet: Sleep with noise levels to as quiet as 25dB on the lowest fan speed. Safe & Certified: CARB certified, FCC certified, ETL listed. Features 3-Stage Filtration Auto Mode Quiet Operation Fully Certified LED Display Timer Function Air Quality Updates Specifications Voltage: AC 120V, 60Hz Rated Power: 47W Effective Range: 442 ft² / 41 m² Dimensions: 12.5 x 12.5 x 23.6 in / 31.8 x 31.8 x 60 cm Weight: 21 lb / 9.5 kg Operating Conditions Temperature: 14°–104°F / -10°–40°C Humidity: < 85% RH Noise Level: 25–54dB CADR: 466 m³/h / 274 CFM Standby Power: < 0.8W What's in the Box 1 x Air Purifier 1 x True HEPA Combination Filter (Pre-Installed) 1 x User Manual Note The term True HEPA encapsulates all HEPA filters in the 13 grade and above, and is a term used to provide a general description of the grade of HEPA; it is not a scientifically categorizing term. Therefore, our air purifier is a H13 True HEPA filter, which is also a Ture HEPA filter. H13 grade HEPA filters are required to filter at least 99.97% of particles of 0.3 microns, so we have attached a PDF file ‘Efficiency testing report of 30gsm H13’ to proof our filter is a H13 grade HEPA filter.