This inflatable lifejacket is designed and produced according to EN396/A1: 1998 and relative requirements of MSC.81 (70). It consists of one air chamber made of TPU nylon composite material, auto inflation device, CO2 cylinder and oral tube. In emergent situation when falling into water, it can be inflated by the auto inflation device with five seconds or by manually pulling the toggle so as to ensure safety of the drowning people ( ZHGQYT-0521 type lifejacket can only be inflated manually.) It has the advantages of small size, light weight, comfort, easy use and it is suitable for offshore operation and personal protective device. They are CE approved by Germanischer Llyod AG.