Fast interior warming and defrosting: three modes in this 12V car heater system include a heater, a cooler fan, and a defroster with an air purifier. The air purification function can be switched on to remove smoke, dust and odour in the car, improving cabin air quality. Safe and reliable performance: built from heat resistant ABS material with heating elements and pure copper cables. It features builtin fuses and automatic overheating protection for safe use. Connects to the car cigarette lighter socket and heats up in about 30 seconds. Easy to install and adjust: the base can sit on a nonslip mat or be positioned in a car cup holder. Switch positions include FAN natural wind, OFF, and HEAT heated wind. The main air outlet can be adjusted to direct airflow and fixed in your preferred position for comfortable use. Compact and portable design: compact size with an ergonomic handheld form for easy carrying and installation. The device is easy to guide like a car vent and can be fixed in a preferred position using the main air outlet for convenient use. Practical use scenarios: Winter defrost and warmth: rapidly warm the cabin and remove frost or fog from the windscreen to maintain clear driving visibility. Air purification on the go: activate the purifier to eliminate odours and improve air quality, especially after smoking or cooking inside the car. General ventilation or cooling: use the fan mode to circulate air and provide directional ventilation without heat.