Surface-electrified PTC Ripple Heater Series is a kind of heater that can auto- control temperature and save electronic lt is made up of PTC and waves aluminum, The heater with a lot of virtues such as giving out large heat, stable power, using expediently, long life, high reliability, without bright flame is adhibited ripple heat difu- sing component which hot wind can go through on both sides of general PTC elem- ent,lt is now widely used in house heating instrument such as applied in air-adjuster, wet wipe off,dryer,suti-dryer,moveable heater and automobile etc,that need warm air.