1. Cylinder: 6.8 L capacity, 30 M pa working pressure, 15 years service life, and -30 60 2, Air supply valve: small size, automatic open suction device, ensure sufficient air supply and

resistance 4. Backplate: high-strength carbon fiber backplate;

0.77 M Pa output pressure and the rescue interface is at output

7, Pressure head-up display device: wirelessly connected, no hinder to user's sight and head

± 15 seconds,

60 seconds, sound intensity 9. Weight: 10.7kg