How often should the air conditioning outlet of the hotel be cleaned?

There is no fixed time, which is related to the working environment of air conditioning. If the working environment is good, it can be cleaned for a long time. If the working environment is not good, you have to clean it every month, but the parts you clean are different. For example, the condenser with dirty working environment may be washed once every half month, and the evaporator is usually washed once every two years. According to the use situation, wash the evaporator filter screen when it is dirty. Therefore, the cleaning of household air conditioners is irregular. If you really want to clean, wash the evaporator (internal machine) and condenser (external machine) once a year, and wash the evaporator filter once a month!