Hangzhou maintenance air conditioner does not cool the master phone. How much fluoride is in the air conditioner?

Fluorine in air conditioning generally depends on how much pressure you add, but don't add Freon foolishly every time without refrigeration. Air conditioners should be cleaned frequently to remove mites. I remember last year, it was 30 yuan, and there will be a little difference in different regions, but generally there is not much difference. If you need a phone number, I have the phone number of an old master?