Intelligent air purification, zero residual smoking High-efficiency filtration system: Built-in HEPA filter and activated charcoal layer instantly adsorb smoke, nicotine and odour when smoking, with purification efficiency up to 99%, avoiding second-hand smoke and odour proliferation. 360Circulating air duct: The top smoking port design, together with the bottom turbine fan, quickly inhales smoke and purifies it, and the air quickly recovers freshness after smoking. Quiet operation, no disturbing experience Ultra-quiet technology: the noise level is less than 30dB, equivalent to a whisper, and does not disturb others at night or in the office. Intelligent Noise Reduction Mode: Automatically recognises the volume of the environment and adjusts the wind speed to maintain low-noise operation. Intelligent sensing, one-key operation Infrared sensor switch: automatically start when the hand is near, and switch off automatically after 3 minutes of no operation after smoking, energy saving and power saving. Touch panel: one key to switch the wind speed (low/medium/high), easy to operate, the elderly and children can easily use. Portable Design, Multi-scene Adaptation Mini body: compact size, can be placed on the desktop, car or bedside, does not take up space, to meet the needs of the family, office, travel and other scenes. Car Adaptation: Some models are equipped with non-slip base and 12V car power port, which can keep the air in the car fresh even when driving.