title: A new respiratory protective device.
abstract: This paper describes a new respiratory protective device for use in dangerous environments. The new system provides a lightweight alternative to present compressed air systems and a safe alternative to present pure oxygen respirator systems. The new system utilizes electronically controlled valves, two breathing bags, and a small, compressed supply of oxygen-rich air to achieve these goals. A prototype backpack system very adequately demonstrated the feasibility of such a system as a useable device for respiratory protection.
mesh_terms: D004781:Environmental Exposure; D006801:Humans; D010100:Oxygen; D011482:Protective Devices; D012134:Respiratory Protective Devices; D013696:Temperature
chemical_list: D010100:Oxygen