There are many reasons for the heavy smell in the car, but there are three main factors that have a greater impact: interior flavour, human flavour, air conditioning flavour and evaporation. When the new car is bought, the opening of the door will smell a relatively strong smell of plastic and rubber leather, which is mainly distributed from the interior, including a series of plastic and leather packages such as dashboards, doors and seats. In addition, additives and adhesives that are used in the production of these emulations continue to release odour-bearing volatile substances, resulting in alienated inside cars. Man-made insinuations are mainly caused by decorative pollution in cars and some poor driving habits. Leather seatcases, geogels, and cushions for fibre-optic materials all release volatile organic pollutants. Most of the bad perfume in car-borne perfumes is chemical perfume, and if someone smokes, drinks or eats in the car, they leave a taste, which lasts for a long time, while the food residue is not cleaned up in time, and then the stench changes. Air conditioners smell mainly because air conditioning systems have not been cleaned for long periods of time, the evaporation tanks and windways have accumulated a large amount of dirt, dust, etc., and have produced fungus, bacteria, etc., in a damp environment, which can give rise to alienated ailments, which often make the driving very uncomfortable, and the severe and discomforts of dizziness, dysentery, etc. External pollution can also affect air quality in cars to some extent. Car exhausts contain carbon monoxide, nitrogen oxides, etc. And they also contaminate the environment in the vehicle. In addition, driving a window in a haze would lead to an excess of fine particulate matter (pm2. 5) in the vehicle. Although these polluting gases do not cause disease immediately, they are harmful to health by being inhaled too long. Dissipation from evaporation tanks: following the replacement of air-conditioning filters, the aerobics continue unabated, which refers directly to evaporation containers, because the replacement of air-conditioning cores does not solve the aerobics, which requires evaporation tank cleaning and air-conditioning windway cleaning。
