Mini blower 1. Waterproof: The current grade can be IP55-IP68, suitable for outdoor humidity temperature 100% environment. 2. Moisture-proof: no certain grade, suitable for humidity in 30%-40% humid environment (humidifier) 3. Fire protection: It is made of special fireproof material and can withstand high temperatures of 75 degrees. 4. Temperature control: automatic temperature control, automatic shutdown at low temperature, automatic opening at high temperature. 5. Terminal: The current standard terminals are 2.0/2.5/2.54/3.96, etc. Special terminals need to be customized. 6. Terminal wire: The length of wiring according to customer requirements. 7. Stop alarm: Automatically issue an alarm if there is a problem with the fan.