What does Haier casarte mean by self-cleaning inside and outside the air conditioner?

The internal and external self-cleaning function of Haier casarte air conditioner means that the air conditioner can automatically clean the internal and external air filters, remove dust, bacteria and harmful substances, and keep the air fresh. Specifically, internal self-cleaning can heat and evaporate internal water vapor through high-temperature evaporation, thus realizing internal self-cleaning; External self-cleaning is to spray water mist to the external air cleaner through the cleaning nozzle built in the air conditioner to clean dirt and odor. This can not only ensure the normal operation of the air conditioning system, but also improve the air quality and give users a better experience.