The cabin air filter, also called the air conditioning filter, is a key component in the vehicle air conditioning system. It is mainly used to filter dust, pollen, smoke, bacteria, mold, pollutants and other harmful substances in the air inside the car to ensure that the air quality inside the car is fresh and clean. The cabin air filter directly affects the breathing health and comfort of the owner and passengers, especially in areas with serious air pollution, where its role is even more important.

Functions of cabin air filter

1. Filter external pollutants: The cabin air filter can block dust, pollen, smoke, harmful gases in the air and other particulate matter from outside the car, thereby keeping the air in the car fresh.

2. Improve air quality: It can effectively filter harmful substances in the air and reduce the burden on the respiratory system of passengers in the car, especially for people with respiratory diseases such as allergies and asthma.

3. Prevent mold growth: In a humid environment, mold and bacteria are easy to grow in the air conditioning system. A good air conditioning filter can effectively prevent the growth of these microorganisms.

4. Improve the efficiency of the air conditioning system: A clean air filter element helps the air circulation of the air conditioning system, reduces the burden on the system, and improves the cooling and heating effects. 

Types of cabin air filters

1. Paper filter: This is the most common type of cabin air filter, usually made of multi-layer paper material, which can effectively filter most particulate matter and pollutants, and the service life is usually 1 year or 15,000 to 30,000 kilometers.

2. Activated carbon filter: In addition to the basic air filtration function, the activated carbon filter can also absorb odors and harmful gases (such as ozone, formaldehyde, sulfur dioxide, etc.) in the air, which is common in high-end models or high-efficiency air filtration systems.

3. HEPA filter: High-efficiency particulate air (HEPA) filter can filter smaller particles, and even fine dust and harmful microorganisms in the air. It is suitable for areas with severe air pollution or users with high requirements for air quality.

4. Carbon fiber filter: This type of filter uses the physical properties of carbon fiber to absorb harmful gases, odors and toxic substances. It is suitable for environments with special requirements for in-car air quality. It is common in luxury cars or high-performance cars.

5. Composite filter element: It combines multiple filter element technologies (such as paper filter element combined with activated carbon filter element) to filter fine particles and harmful gases at the same time to improve air quality.

Nanjing Dong Sun Tech Co., Ltd. is a company dedicated to the research, development, production, and sales of automotive environment-protection products and related new energy technologies. We are committed to providing high-quality automotive spare parts to global customers, including automotive filters and new energy vehicle charging accessories, covering various models and brands. As a professional automotive products company, we have established solid partnerships with customers worldwide, offering comprehensive products and premium services.