1. This desktop space heater features a PTC ceramic heating element that heats up quickly within 3 seconds, offering faster and more efficient performance than traditional heaters, ideal for indoor use in offices, bedrooms, bathrooms, and similar spaces. 2. Overheating protection design ensures safe operation during extended use. The heater automatically stops heating when internal temperatures reach 150 degrees Celsius and resumes when the temperature drops below 120 degrees Celsius. If the temperature exceeds 150 degrees Celsius, the unit automatically shuts off for added safety. 3. The heater is constructed with flame-retardant materials to enhance safety, reducing concerns about melting or fire risks due to high operating temperatures. 4. Designed for quiet operation, this heater operates at less than 30 decibels and uses ceramic heating technology without emitting light, minimizing disturbances during work or sleep. 5. Compact and portable, this indoor heater is suitable for use on office desks, in bedrooms, or during baby bath time, providing reliable warmth for a comfortable winter season.