| 摘要 |
A breathing apparatus and method therefor having a frame capable of carrying a primary air storage tank and an emergency air storage tank, where the emergency air storage tank can either be released from the frame to replace a disabled person's tank, or the emergency air storage tank can remain on the frame and be coupled to a disabled person's face-mask by a hose thus allowing a rescuer to have both hands free in order to carry or drag a disabled person to safety
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