Aerator A device used to infuse air into a liquid such as the aerator on the spigot of a lavatory basin faucet to inject air into a water stream.
Air entrainment When air is mixed with water in a hot tub or whirlpool tub recirculation system when water rushes past an orifice and draws in air to be mixed with the water flow.
Air hawk vent A trade name for an attic ventilator that is usually mounted on a roof to ventilate the attic space.
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