Replace the dust filter
Routine cleaning of an air conditioning system includes replacing the filter element, using detergent and removing it for cleaning. The replacement of dust filter is the simplest way, low cost but can make the inlet air to keep unobstructed, a little mechanical sense of the owner can do their own cleaning. The dust filter on most small cars is under the front windshield, covered by a water sink. When replacing the dust filter, you can first lift the engine cover, remove the clip fixing the flow tank, remove the flow tank, and you can see the dust filter. If the dust filter is not used for a long time, it can be blown clean with high pressure air; If it is blocked, remove it and replace it with an original dust filter, then install it as is.
External circulation air channel sterilization
There are many kinds of cleaning agents on the market for cleaning air conditioning duct, owners can buy their own. Take off the dust filter, start the vehicle, turn on the air conditioner and put the air conditioner in the outer circulating stop, spray the foam cleaning agent into the dust filter, the outer circulating air conditioner will breathe the cleaning agent into the air duct, remove bacteria and odor from the decomposition of the air duct, air conditioner evaporator and warm air tank, and the dirt will become liquid and flow out from the outlet of the air conditioner. After the cleaning work is completed, it is best to replace the dust filter, and the air outlet in the car will blow out the new air.
Send it to the maintenance station for cleaning
Replacing the dust filter and using cleaning agent to clean the air duct are all cleaned from the outside of the air conditioning system. If the air volume of the outlet is still small after cleaning and the odor is not completely removed, you can only go to the repair shop to remove the bellows, replace the evaporator and manually clean the housing of the air conditioning heating device. However, the bellows are generally installed in the vehicle under the instrument, the maintenance workload is large, the cost is high.
Sterilization with ozone
The use of high concentration ozone water for automobile air conditioning sterilization. It is understood that ozone water is currently available one of the strongest oxidants, can easily make bacteria, fungi protein shell oxidation denaturation, quickly kill bacterial reproduction and spores, Escherichia coli, Staphylococcus aureus, hepatitis virus, cold virus oxidation decomposition. Ozone is active and can be reduced to oxygen at room temperature. It is the most environmentally friendly bactericidal substance at present.