| 摘要 |
A respirator fluid feed-line system that includes a respirator having a first side and a second side opposite the first side. A feed-line connector is located on the first side; and an inside fluid feed-line is located on the second side. The inside fluid feed-line is in communication with the feed-line connector on a first end, and has a free second end capable of being inserted into a user's mouth. The system also can include a fluid receptacle having an opening through which air can pass. The system can further include a filter, in communication with the opening, and positioned substantially between the opening and an outside air source. The filter can include a HEPA cartridge and a spring valve, such that when air is passing into the receptacle, the spring valve is opened, and when air is not passing into the receptacle, the spring valve is closed. An outside fluid feed-line, having a third and a fourth end, can also be included, wherein the third end is capable of being coupled to the feed line connector, and the fourth end is capable of being coupled to the fluid receptacle such that the fluid receptacle, the outside fluid feed-line and the inside fluid feed-line are in communication with each other.
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