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1. The traditional hot water bottle is just an empty bag made of rubber, usually square, and also can be a Long Hot Water Bag, with a hot water inlet and outlet at one end, which is sealed with a stopper, and most of it is a spiral stopper. Its use is to fill in hot water for heating Function, according to the material is divided into rubber hot water bottle and PVC hot water bottle.

2. The water storage type electric hot water bottle has a heater inside by filling it with liquid, and plugging in the power supply to heat the liquid in the bag to achieve the purpose of heating.

3. The electric heating cake is filled with thermal insulation cotton, and the moisturizing cotton inside can be heated by plugging in the power source to achieve the heating effect.

Traditional hot water bottles

Medical-grade PVC hot water bottles and rubber hot water bottles are common traditional hot water bottles.

The standard of PVC Hot Wate Bag will be higher. PVC hot water bottle is resistant to high temperature and non-toxic. This is also more related to the production process. However, the general strength of PVC hot water bottles is generally lower than that of rubber hot water bottles, which will cause explosion or water leakage to a large extent after being squeezed.

Rubber Hot Water Bags have better heat resistance than PVC, but rubber ones may sometimes have a heavy smell and smell a little strange. Therefore, rubber hot water bottles are not very suitable for babies.