The functions of air conditioning filters made of different materials

In the past few years, the function of air conditioning filters has only been to filter out impurities and dust, protect the evaporator, and absorb odors by hand. The selection of air chamber filters and the timing of their replacement must be determined based on the local usage environment. Most car owners believe that extending the replacement cycle of air conditioning filters and air filters can reduce vehicle usage costs. A phrase they often hear in 4S stores or repair shops is, "You blow it for me with an air gun. I'll replace it next time." However, as more and more new materials are applied in the automotive field, the indoor environment is receiving increasing attention.

It should be noted that HEPA filter elements are only effective in filtering small particles, just as we often mention PM2.5. However, this kind of filter element has no obvious effect on odors and harmful gases. Therefore, it needs to be used in combination with other filtering materials.

HEPA filter elements are only effective in filtering small particles

HEPA filter cartridges are only effective in filtering small particles. However, when used as the filter layer of an air conditioning filter element, the HEPA filter element is only effective in filtering small particles, and so on. The HEPA filter cartridge is only effective in filtering small particles of 5 μ. The results show that PM has no significant effect on harmful gases and odors. Non-woven fabric filters are relatively inexpensive, but they are not recommended for use in complex environments.

Bamboo fiber

Bamboo fiber is a natural fiber made from cellulose extracted from bamboo and is mainly used in clothing. The price of non-woven fabric filters is relatively low. Due to the fact that the main filter layer of the filter element is not very popular, the market penetration rate of bamboo fiber air conditioning filter elements is not high. The price of non-woven fabric filters is relatively low, and their filtration principle and effect are similar to those of non-woven fabric. However, due to the unique antibacterial, mite-proof, odor-proof and insect-proof functions of bamboo fiber, using bamboo fiber as an air conditioner filter for odor treatment is slightly better than using non-woven fabric.

Activated carbon

Activated carbon filters are the most common air conditioning filters on the market. Whether in the original factory or the aftermarket, activated carbon filters account for a large proportion. During the process of converting organic materials into activated carbon, there are internal voids that serve as a filter layer for adsorbing gases. When should activated carbon be used for air conditioning filters? It can absorb harmful gases inside the vehicle, but the process is relatively long.