| 摘要 |
A portable device for providing air to those trapped within a smoke-filled building includes a base member for mounting a building opening such as a window, an air conduit such as an air hose mounted on the base and capable of being lowered to an area having breathable air, and an extendable boom for positioning the air conduit away from the building. A user simply connects a breathing instrument to the air conduit after lowering, to receive breathable air.
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