Adopt patent technology: 3 In 1 Semiconductor technology Built-in antibacterial mold-proof filter to filter dust in the air Adopt microcomputer program control, HD LCD display Imported control chip with PM2.5, air quality, air temperature and humidity monitoring With setting of six timed working hours, timed loop operation Remote control with far distance infrared receiver, can be 45 degrees of arbitrary control The air enter from top surface, fresh air supply like wind on the bottom, so the sterilization is comprehensive. In the timed and manual mode, high, medium and low wind speed gears can be selected for operation. In the timed and manual mode, individually activated light wave reaction device or semiconductor device can be set. Convenient maintenance and maintenance: Cumulative contaminants after the semiconductor device operated, it can