... dryer,hand/foot warmer,massager,physical therapy heater. 1) Aluminum shell. PTC heater is very appropriate under 260 temperature. Main ... appliances: hair straightener, hair crimper, wax melting heater, humidifier, water boiler, liquid warmer, coffee warmer, polymer press ... temperature of PTC can be controlled by itself, control circuit may be omitted in most appliances.3) Our PTC ...