How often should the car air conditioning evaporator be cleaned?

[DeNora]

Car air conditioning evaporators should be cleaned once a year. If the evaporator is not cleaned for a long time, it will accumulate a lot of dust, causing secondary air pollution, which can affect the health of users when inhaled. The function of the air conditioning evaporator is to use low-temperature liquid refrigerant that easily evaporates under low pressure, converting it into vapor and absorbing heat from the cooled medium to achieve refrigeration. The car air conditioning evaporator is located inside the dashboard. When the air conditioning is turned on, the evaporator needs to exchange heat and cold, causing a large amount of condensation water to form on its surface. At the same time, incoming outdoor air may carry various dust, bacteria, and impurities, which, along with the condensation water, adhere to the surface of the evaporator. Therefore, regular cleaning is necessary.