Fully Automatic Sensor Hot & Cold Wind Hand Dryer FAQ
Airflow Velocity Control, Infrared Trigger Logic & Motor Thermal Protection
This automatic hand dryer must deliver high-speed airflow,
detect hand placement accurately, and protect internal motor components during repeated use.
How does the dryer remove water from hands efficiently?
High-velocity airflow applies shear force across the skin surface, displacing water droplets rather than relying only on heat evaporation.
How does the sensor control drying activation?
The infrared detection circuit activates the motor only when hands enter the sensing field, reducing unnecessary runtime and energy use.
What protects the motor during continuous operation?
Thermal protection and controlled duty cycling help prevent overheating when the dryer is used repeatedly in high-traffic restrooms.
Why is airflow channel design important?
Smooth air channels reduce turbulence losses, allowing the blower to maintain stronger exit velocity with lower energy waste.