Fast Heating with PTC Ceramic: Fan heater heats up quickly thanks to advanced PTC ceramic, which produces sufficient heat in a short time. Electric fan heater will provide you with instant and efficient heat in the cold winter. 2 Temperature Settings:PTC heating element is the abbreviation of electric ceramic heating element, which is more stable than traditional heating element, heats up quickly.The heater has low thermal resistance,exchange rapid heat and automatically constant temperature. Low noise level: The noise this ceramic heater makes is less than 30 dB, quiet enough for most people, to be used in a bedroom during sleep.Provide a quiet space for your comfort. Overheating protection & Tip-over: The portable heater made of flame-retardant ABS material is equipped with various safety systems, including overheating protection, tip-over protection and automatic shutdown. So you can enjoy the warmth of a portable heater while eliminating safety risks and using it indoors with confidence. Fan Heater Ideal for winter:The ideal size of personal heater is 21*14.8*8.6 cm. You can put it in your office, bedroom, dining room. This portable heater is the most practical and warm gift for lovers, friends and family.