Andrea is a living air filter that absorbs toxic gasses from air, contaminated indoor air.

I'm going to check the air filter down there.

That's a 10x10 room, jerry, with an air filter designed for three people.

an inlet among the rocks, many rocks that... she had never realized,

Extractor hoods are used to filter out gasses from chemical reactions. The air, once cleaned, is pumped outside of the building.

Now if you don't have power, or, God forbid, the power cuts out in the middle of surgery, this machine transitions automatically, without even having to touch it, to drawing in room air from this inlet.

Parts of the United Kingdom nuclear weapons complex use high volume air samplers, which employ a filter to collect and monitor particulate emissions.

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Our journey did not, in fact, begin at Hercules Inlet, where frozen ocean meets the land of Antarctica.

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