[HIGH PERFORMANCE H13 TRUE HEPA FILTER] 3-Stage filters, the air through pre-filtration, HEPA filtration and activated carbon filtration 3 levels filters, it can capture 99.97% of 0.3 micron air particles, such as dust, dander, smoke, pollen and odor, air purifier for home office[360°AIR INTAKE & LARGE COVERAGE AREA] Featuring 360°air intake with 5 speeds adjustable, rated CADR 212CFM (360m³/H) powerful to refresh the air 5x per hour in rooms as 269 - 463sq.ft (25 - 43m²);Fit for around 463 sq ft room. Max cleaning space could cover up to 2314sq.ft (215m129) per hour[SMART AUTO MODE & USER FRIENDLY DESIGN] Built-in dust sensor can automatically adjust wind speed according to real-time air quality; different color LED light can indicate the air quality; digital display can show the air PM2.5 value in real-time; filter indicator will remind to change the filter; child lock design ensures the safety of baby and pet[UNDISTURBED SLEEP MODE & TIMING FUNCTION] Equipped with a brushless DC motor, will reduce the noise to below 29dBA, and the indicator light can be turned off to enjoy a perfect night of sleep; the timing function will allow you to set the shortest time 1 hour and the longest time 12 hours as you want[OZONE FREE & FULL CERTIFIED] ECOWELL air purifiers avoid to use negative ions that can produce harmful ozone and secondary pollution; Complies requirements with CARB for indoor cleaning devices, also be FCC and EPA certified, ETL listed; and we offer 2 years limited warranty and local US company after-service ECOWELL Air Purifiers for Home Large Room up to 2314sq.ft in 60 Min, 29dB, CADR 212CFM, Air Purifiers for Bedroom Pets with H13 True HEPA Filter, Removes 99.97% Mold Smokers Pet Dander Dust Odor Track Page Views WithAuctiva's Counter