... Easy to fit in vehicle interior Product Introduction :1. Instant air heating after heaters starting-up ;2. Continuous function monitoring ... of air conditioner , like original brand Compressor , Clutch , Heater , Defroster , Radiator , Fan , Valve and so on . Our company passed the ISO9001: 2008 ... or questiones,please feel free to contact us , thanks ! ~ Air Heater /Air Boiler / Warm-air Furnace Series