Side holes {aerator}| at faucet tips can let air into water. An aerator obstruction makes water turbulent, to allow more air.
Entrances {air lock}| can have two doors, so space between is a buffer.
Divers can carry a compressed air tank with breathing apparatus {aqualung}|.
Tubes {aspirator}| can have vacuum, which can pull up liquid or a small object.
Airflow can slow and quiet using perpendicular surfaces {baffle}|.
Air sacs {bellows}| can suck in air and then blow air out, to kindle fires.
Hollow tubes {blowpipe}| can blow air into receptacles.
People suck smoke, from hot tobacco placed on burning charcoal, over cool water into tube {waterpipe} {hookah}| {water pipe}.
Diver can use compressed air tank and breathing apparatus and wear wet suit {scuba}|.
Skin divers use a tube {snorkel}| from mouth to surface. Tube has ball valve that prevents water from entering during inhalation.
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Date Modified: 2022.0225