Why do Audi cars have two air conditioning filters?
1 Answers
Audi's air conditioning filters differ from those of many other brands, being divided into an internal circulation filter and an external circulation filter. The internal circulation filter filters out fine particulate matter, while the external circulation filter is responsible for filtering larger particles. The internal circulation filter is located inside the glove compartment on the passenger side. The external circulation filter is situated below the wiper in the vehicle's engine compartment. Functions of the air conditioning filter: When driving with the air conditioning on, the car draws in external air into the cabin. However, the air contains various particles such as dust, pollen, soot, abrasive particles, ozone, odors, nitrogen oxides, sulfur dioxide, carbon dioxide, benzene, etc. A high-quality air conditioning filter can absorb dust particles, alleviate respiratory discomfort, reduce irritation for allergy sufferers, enhance driving comfort, and also protect the air conditioning cooling system. Types of air conditioning filters: One type does not contain activated carbon, while the other type does. The activated carbon air conditioning filter not only performs the above functions but also absorbs a significant amount of odors and other pollutants.
