Motor:Shaded pole/Cage type capacitor structure external totol motor.

Impeller:Black PA nylon one-time injection moulding

Operation range:-40℃~+80℃（temperature）,0%-95% (humidity)

Protection:Impedance protected/Automatic recovery thermal protection.

Withstand Voltage：AC 1800V,1min at 0.5mA,50/60Hz

Insulation Grade:design according to IEC61858 Grade F.