| 摘要 |
<p>A breathing bag is disclosed. The breathing bag comprises a bag body enclosing an interior volume of the breathing bag. The bag body includes a distal end portion and a neck portion terminating in an open proximal end of the breathing bag. The breathing bag further comprises a bushing coupled to the neck portion. The breathing bag includes at least one indicia thereon. The at least one indicia has a color corresponding with a size of the breathing bag.</p> |
