The hose is connected to a machine that lowers the air's oxygen content, thereby simulating a mountaintop environment.

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Richmond was infected after a mail-sorting machine was cleaned with a high pressure hose.

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Lillehei solved that problem with cross-circulation, in which a donor, linked to the patient by plastic hose and a simple pump, acted as a living heart-lung machine.

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Another round of the pitiless nebulizing machine, another night of waking Davis up every four hours so that the hose attached to the shoebox-sized device could deliver the misty medication that would restore his breath but rattle his fragile body.

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