Three to five years. The storage time of plastic toy guns is related to the material. Under normal circumstances, plastic toy guns can be stored for 3 to 5 years. Plastic products that exceed the shelf life will be aging, fragile, breeding toxic substances and other hazards, which will affect the use effect.

　　5 years

　　The refrigerant gas gun can be used for 5 years with one charge. The air conditioner can be used for more than 5 years by adding fluorine once. The air conditioner itself does not consume freon during use, and the freon will naturally leak during use, and the speed of natural leakage depends entirely on installation.

　　It depends on the material. It takes three to five years.

　　The storage time of plastic toy guns is related to the material. Under normal circumstances, plastic toy guns can be stored for 3 to 5 years. Plastic products that exceed the shelf life will be aging, fragile, breeding toxic substances and other hazards, which will affect the use effect.

　　The coolant for toy guns can be used for 2 to 3 years. The function of the coolant is to take away heat by its own physical changes. Under high pressure, the coolant forms liquid and releases heat at the same time.