A new respiratory protective device.
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.
Environmental Exposure↗