1. Infrared sensor design.touchless drying hands means hygiene. 2. Fashion apperance, energy saving and environment protection, low noise, and quick drying. 3. Very safe with multi-protection for over temperature, over currency and over time. 4. High efficiency, economical operation with easy maintenance. 5. ABS plastic shell, easy to clean, to avoid cross-contamination. 6. Widely used in office building, hotel, hospital and other public places. 7. Have passed CE, RoHS certificate.