1,This fan motor be used in ventilation fan, exhuast fan 2,High quality and reasonable price 3,Enjoying three-years warrant ... CCW7. Insulation class: E/B/F/HApplication:1. This fan motor is commonly used in humidifier, fan-heater,air-cleaner,exhaust ... fan,hand drier,ventilation fan2. Safe and reliable, low noise, characteristics hard, good starting, long life, ...