This white VCK air purifier is equipped with H14 True HEPA filter and PM2.5 Monitor that will remove 99.997% of harmful particles. It cleans up to 2,300 sq. ft. and a VCK filter can be used for 2,600 hours or 3-4 months with certifications from CARB, EPA, FCC, and ETL. The smart mode can monitor the air quality in real time all day long and intelligently adjust the operation efficiency. When the air quality is poor, it automatically operates on high-efficiency; when the air quality is good, it automatically operates on low-speed, providing you with an energy-saving and power-saving intelligent life. It has a simple and clear control panel to use the touch screen or the included remote control. In sleep mode the backlight is auto-dimmed, has a 12h timer and is ultra-quiet at 43dB.