Replace the dust filter
Conventional air conditioning system cleaning includes replacing filter elements, using detergents, and removing them for cleaning. Replacing the dust filter is the easiest way. It is low-cost but can keep the air inlet unobstructed. Car owners with a little mechanical knowledge can clean it by themselves. The dust filter of most small cars is under the front windshield glass of the car and is covered by the water trough. When replacing the dust filter, you can open the engine cover first, remove the clip that fixes the water trough, and remove the water trough to see the dust filter. If the dust filter is not used for a long time, you can blow it clean with high-pressure air; if it is clogged, just take it off and replace it with an original dust filter, and then install it as it is.
External circulation air duct sterilization
There are many kinds of cleaning agents for cleaning air-conditioning ducts on the market, and car owners can buy them by themselves. Remove the dust filter, start the vehicle, turn on the air conditioner and place the air conditioner in the outer circulation block, spray the foamy cleaning agent to the dust filter, the outer circulation wind of the air conditioner will suck the cleaning agent into the air duct, against the air duct , Air-conditioning evaporator and heating water tank decomposes bacteria and removes peculiar smell. The dirt will become liquid and flow out from the air-conditioning outlet. After the cleaning work is completed, it is best to replace the dust filter so that the air outlet in the car will blow out fresh air.
Send to repair station for cleaning
Replacing the dust filter and cleaning the air duct with cleaning agent are all cleaned from the outside of the air conditioning system. If the air volume of the air outlet is still small after cleaning and the odor is not completely removed, you can only go to the repair shop to remove the wind box and replace the evaporation And manually clean the housing of the air conditioning heating device. However, the wind box is generally installed under the dashboard of the car, which requires a lot of maintenance work and high cost.
Use ozone to sterilize
Use high-concentration ozone water to sterilize automobile air conditioners. It is understood that ozone water is one of the strongest oxidants currently available. It can easily oxidize and denature the protein shells of bacteria and fungi, quickly kill bacterial propagules and spores, and destroy E. coli, Staphylococcus aureus, hepatitis virus, The cold virus is oxidized and decomposed. Ozone is active in nature and can be reduced to oxygen by itself at room temperature. It is currently the most environmentally friendly bactericidal substance.