HS-BS vest-type manual inflatable "inflatable life jacket" before inflation: When a vest is placed on the floor, falls into the water or is in distress in the water, the manual valve is opened and inflated quickly for 2 seconds to float the human body to the surface, saving lives. Life jackets have blowholes and can also be blown. When HS-BS vest-type manual inflatable life jacket is in distress, the manual valve is opened and the high-pressure gas in the steel cylinder is charged into the life jacket. The chest and back of the vest are rapidly inflated to form airbags, which can generate buoyancy of 10 kg to make the human body float on the water.

2)HS-BZ2 type

After the HS-BZ vest-type self-inflating "inflatable life jacket" is inflated, the chest and back of the vest are rapidly inflated to form airbags, which generate 10 kg buoyancy in the water and automatically straighten the human body. Even in a coma, you can breathe normally on the water and wait for help. The airbag is also equipped with a 3M reflective tape, a distress whistle and a water battery lamp for distress.