Comply with SOLAS 1974,as amended Use for people when emergency escape, it is a high performance personal respiratory protective equip ment to protect them Working Principle: Reduce the high pressure gas to medium pressure gas into 0.6~0.9 Mpa in the cylinder, flow to hood for human respiratory ◆Used for emergency escape from any confined spaces ◆Fast air supply system ◆Compressed breathing air technology ◆Easy to refill cylinder,no adaptor required