What are the effects of not installing an air conditioning filter in a car?

[AngeloRose]

If a car does not have an air conditioning filter, tiny invisible particles in the air, such as dust and other pollutants, as well as various unpleasant odors, will enter the vehicle. Additionally, unseen bacteria and fine particles can be blown into the car through the air conditioning vents and inhaled into the lungs, posing health risks. Below are relevant details: 1. The role of the air conditioning filter: The air conditioning filter is designed to prevent such substances from entering the air conditioning system, thereby protecting the system and providing a clean air environment for passengers, safeguarding their health. 2. Replacement cycle of the car air conditioning filter: How often the car air conditioning filter should be replaced depends on individual driving habits, external environmental conditions, and seasonal climate. Generally, for urban household cars, it is recommended to replace the filter every 10,000-20,000 kilometers or once a year. If the driving environment is particularly dusty or polluted, the filter may get dirty more quickly, necessitating a shorter replacement interval. Furthermore, the frequency of air conditioning use varies with different seasons, which also affects the replacement cycle.