| 摘要 |
PURPOSE: A fireproof ball is provided to enable a user inside the ball to have the minimum respiration using a filter secluding the insertion of poisonous gas. CONSTITUTION: A fireproof ball includes a fireproof ball unit(10), a zipper, an oxygen can(50), a filter, and an oxygen generator. The fireproof ball unit includes a constant space in between an outer case(11) and an inner case(12), and an escaping space inside the inner case. A user can go into the fireproof ball unit through the zipper. The oxygen can includes respiratory device attached inside the escaping space, and includes the oxygen generator. The filter purifies poisonous gas.
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