[High Efficiency Air Purifier]The True HEPA air purifier covers an area up to 1620 sq.ft/150 in 1 hour no matter where you place it; 5 times fresher per hour. Great for large/medium sized rooms; bedrooms; living rooms; offices; nurseries; kitchens; and basements. The product is compact enough to fit on a desktop and floor to meet the needs of a variety of environments.[Fully Certified]The air purifier has been thoroughly tested to ensure better performance. It is ETL certified; CARB certified. You need an air purifier to help bring fresh air to your whole family so that the whole family can breathe freely. Note: Power: AC120V/60Hz[H13 True HEPA Filter]VEWIOR air purifier with the 3-stage filtration comprising a pre-filter; HEPA filter; and an activated carbon filter. Efficiently purify PM 2.5; VOCs; pollen; smoke; pet dander and dust. It detects air quality and displays PM2.5 (Reference value)on the panel to ensure comfortable fresh air. We recommend replacing the filter every 3-6 months to ensure optimum performance of the air purifier.[Multifunctional Air Cleaner]Built with more functions containing 3 fan speed levels; sleep mode; timer setting (2/4/6/8/12 hour timer); auto function and child lock. You can easily choose the functions with the smart touch buttons. Note: The higher the fan speed; the better the purification effect. And the Timer button will blink when the filter expires to suggest you a replacement.[Super Quiet and Energy Saving]H13 true HEPA air purifier runs at lowest speed with low noise when you choose sleep mode; ensuring you will not be disturbed while sleeping or reading. Running in sleep mode and low fan speed is ultra quiet; energy efficient and affordable for all day use. With a noise level as low as 22 decibels; it is perfect for soothing and quiet environment.