1.large and stable air flow,low noise,long life and widely used. 2.mainly use in HVAC systems,electronic fireplace. MODEL:VT-300InstructionProtection class:IP42/IP44Insulation class:BEnvironment temperature: ≤60oC ApplicationThis blower are commonly used in HVAC systems,machinery for heating, ventilating, air conditioning, drying, dehumidifying, etc. Such as electronic air cleaner , hand dryers, ...