This PTC fan heater has two heating elements, including a 750 watt low heating element and a 1500 watt high heating element; the desired temperature can be maintained by adjustable thermostat settings, and the heating element is made of flame retardant material to prevent fire hazard, and automatically turns off when the temperature gets too high, without fear of flame or product overheating. Blowing the bathroom, it has a natural wind function of 35 watts for hot summer, which can meet your needs all year round.