Four deep purification, efficiently intercepting pollution Primary filter: intercepts large particles of dust and hair and extends the life of the main filter element. HEPA high-efficiency filter: filter 0.3μm particles up to 99.97%, easily intercept PM2.5, pollen, smoke and other allergens. Activated carbon composite layer: adsorb formaldehyde, benzene, TVOC and other harmful gases, decompose second-hand smoke, food odour. Negative ion release: releases millions of negative ions, settles suspended particles and enhances air freshness. Intelligent air monitoring, real-time purification High-precision sensor: real-time display of PM2.5, VOC concentration in the car, red light, yellow light, green light three-colour light ring intuitive prompts. Automatic mode: automatically adjust the wind speed according to the air quality, high speed purification when the pollution is serious, low speed energy saving after clean. Manual mode: three wind speeds switch at will to meet the needs of rapid purification or quiet. Ultra-quiet design, comfortable Brushless motor technology: operating noise as low as 25dB, equivalent to a whisper, does not affect driving or rest. Energy saving and power saving: 12V car cigarette lighter power supply, low power consumption operation, without increasing the burden of fuel consumption. Compact and portable: only palm size, easily placed in the centre console, cup holder or seat back, without blocking the view. Applicable Scenarios, All Scenarios to Protect Breathing Health Daily commuting: Filter exhaust fumes and dust from morning and evening peaks to avoid respiratory discomfort. Long-distance driving: Continuously purify the air inside the car, relieve fatigue and improve driving concentration. Picking up and dropping off family members: Provide clean air for children, pregnant women and the elderly to protect the health of sensitive people. Smoking/odour in the car: quickly decompose the smell of smoke, food residue odour, and restore a fresh environment. Newly purchased car/after exposure to the sun: efficient adsorption of formaldehyde, benzene and other harmful gases, reduce the harm of new car odour.