3 Seconds & PTC Ceramic Heating: Adopts Positive Temperature Coefficient (PTC) ceramic heating elements, it leads to a more rapid heat production rate, the heater heats up rapidly in 3 seconds, increased safety, and longer life as well as reduced operating costs. Oscillation Function Heating: Tap the swing button on the bottom panel, the heater will oscillate at 45-degree to spread warm air evenly throughout the room. Multiple Safety Protection: the heater saves energy by automatically reducing the power lever as it senses an increase in the ambient temperature of the room. Tip-over auto shut-off feature with flame-resistant material ensures safety use.