●Auto air quality control with odor sensor and indicator ●3 grades of wind speed control,large flow rate radidly purifies indoor air ● 1-12H Timer with Sleep Mode function ●Negative anion releasing 10×107 CM3 ●6-Stage Purifying: 1-Nano-coldcatalyst. 2- Activated carbon filter. 3-Antibacterial and antiviral nonwoven fabric. 4-High efficient HEPA 0.01micron . 5- UV Sterilization. 6- Ionizer ●Hi efficient Motor-- Quiet , low electricity consumption and 30,000 hours life time. ●Remote control and touch panel control