1, Check whether the life vest is damaged:
Make sure the life jacket is free of cracks or puncture holes. This type of damage on the housing indicates that the inflatable chamber may have been contacted by the part that caused the damage. If these flaws are found, they cannot be used until repair is performed.
2, Check the status of automatic inflatable device
The instructions for the automatic charging device will tell you if the automatic charging device is properly installed and ready for use. Please refer to the inflatable device near the automatic charging device to indicate the part inspection instructions.