In the scullery she found several fat demijohns of brown liquid bubbling through airlocks.

BBC: CLOUD ATLAS, BY DAVID MITCHELL

Your ship has airlocks opening out into the vacuum of space, and an oxygen generator to keep the pressurised areas of the ship supplied with air.

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In a separate building across the road, a sanitary production facility -- access is controlled with a series of electronic locks and airlocks -- is gearing up to produce the company's H1N1 vaccine, PanBlok.

CNN: King: H1N1 worries increase awareness on college campuses