1.3 Temperature Settings: The first gear is 505°F, the second gear is 455°F, and the third gear is 405°F. The undersink room heater offers three adjustable temperature levels. Its farinfrared rays generate heat without causing dryness. 2.Safety Timer: It automatically shuts off if no operation is detected within 15 minutes after being turned on. The surface heater features a timer with settings of 30 minutes, 60 minutes, 90 minutes, 2 hours, and 3 hours. It also turns off automatically when tilted beyond 45 degrees or flipped upside down. 3.Fast Heating: Warms your feet as quickly as a foot bath. Adjust the opening angle to distribute heat across a wider area. The underdesk leg warmer measures approximately 53 cm (20.1 inches) and targets coldprone knee areas, keeping them comfortably warm. 4.Reliable Materials: The carbon fiber heating element in this folding space heater is made of nonmetallic material, ensuring safety, lightweight design, quiet operation, and odor performance. Its insulated back effectively prevents heat loss.