The PTC heating element of the heater has two heating modes. Equipped with air supply function, with a maximum appointment time of 7 hours for startup and a maximum scheduled shutdown time of 7 hours. Equipped with human body induction automatic control on/off function, it is forced to shut down at a scheduled time of 8 hours. After shutdown, it continues to supply air for 15 seconds for cooling. Equipped with electronic tilt switch protection and power off protection for dumping exceeding 30 °. Equipped with dual thermal protection of temperature limiter and temperature fuse, it has human body induction function and a sensing distance of 3 meters. Inductive touch button operation, equipped with mechanical rocker switch, dual protection of high-temperature resistant plastic grille and metal mesh. V0 grade flame-retardant ABS shell, detachable air inlet, equipped with washable dust screen.