What is the purpose of an air conditioning filter?
2 Answers
Here are the functions of an air conditioning filter: 1. Provide fresh air to prevent car windows from fogging up, ensuring clear visibility for the driver and safe driving; it supplies fresh air to the passenger compartment, preventing occupants from inhaling harmful gases and ensuring driving safety; it also effectively sterilizes and deodorizes. 2. Ensure safety and hygiene by keeping the air in the passenger compartment clean and free from bacterial growth, creating a healthy environment; it effectively separates solid impurities such as dust, powder, and grinding particles from the air; it also intercepts pollen, ensuring that drivers and passengers do not experience allergic reactions that could affect driving safety. 3. Adsorb harmful substances such as moisture, soot, ozone, odors, carbon oxides, SO2, CO2, etc., from the air; it has strong and durable moisture adsorption capabilities. 4. Filter solid impurities by tightly fitting the filter to the housing, ensuring that unfiltered air does not enter the cabin. It separates solid impurities such as dust, pollen, and grinding particles from the air.
The cabin air filter is quite important in a car. What I care about most when driving is whether it can effectively block dust and pollen from outside. Especially for families with children, a dirty filter during spring pollen season can easily trigger sneezing fits. It also helps filter out fine particulate matter like PM2.5. When driving on highways in summer with windows closed and the air circulation system on, it's solely responsible for filtering the incoming dirty air. Not replacing it for too long causes bigger problems - a moldy filter can actually blow unpleasant odors into the cabin. Last time I smelled that musty odor was when I realized it needed replacement. For frequent drivers, I recommend checking it every six months or so. Cities with heavy rainfall should replace them even more frequently, since respiratory health isn't something to skimp on by buying cheap products.
