The working principle of PURE cabin filter is to remove impurities, harmful gases and odors in the air through physical filtration and chemical adsorption, thereby improving the air quality in the car and protecting the health of drivers and passengers. Our cabin filters adhere to the original quality. The filter materials and technologies used can ensure high-efficiency filtration, high adsorption, effective sterilization (for some products), and high air volume. They provide efficient protection for drivers and passengers. They are simple, easy to use, and convenient. The health of your family comes first.