Air conditioning fluoridation about 100 yuan a time. In the following cases, the air conditioner needs to increase the snow seed: 1. The continuous service life of the air conditioner exceeds 3 years and the machine without adding snow seed should test the snow seed pressure of the machine and appropriately add enough snow seed; 2, when the cooling effect of the air conditioner is relatively poor, when the cooling speed is slow, it should be considered whether the snow is insufficient; 3, the air conditioner can not be cooled, and the compressor is working normally, should test whether the air conditioner snow leakage, solution leak detection, leak repair, vacuum, adding snow; 4. When the refrigeration system is dirty and blocked, the blockage of the pipeline affects the poor refrigeration effect or the phenomenon of no refrigeration; 5, air conditioning in disassembly or disassembly and change of copper pipe, etc., should be replenished in time.