| 摘要 |
An auxiliary respiratory device includes a hollow body having a first inlet, an outlet in communication with the first inlet and having a first check valve pivotally connected to an inner periphery defining the outlet to allow air to flow only out of the outlet and an air suction hole in communication with the first inlet and having a second check valve pivotally connected to an inner periphery defining the air suction hole to allow air to flow only to the first inlet from the air suction hole.
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