Dual Side Air Intake: This air purifier for home large rooms is designed with dual air intakes. Compared to the single air inlet design, it performs purification work on both sides simultaneously, greatly improving the purification speed. Our air purifier for allergies CADR is up to 300 (m ³/ h) For a 1076 square foot/100 square meter room, it can refresh the air every hour, giving you a healthy and fresh breathing environment in smoke Authoritative Certification: Certified by 3rd party testing agency, MORENTO HY4866 air purifier can effectively remove the air particles ranging. Turn on the high-efficiency air purifier, so that you can enjoy a new and comfortable air environment all the time PM 2.5 Display & Air Quality Sensor: The MORNETO HY4866 bedroom air purifier is equipped with an infrared PM2.5 sensor, which will monitor the air quality in real time and feed it back to the display screen. When the air purifier is in automatic mode, if the surrounding air becomes cloudy, the