Word.ws English Dictionary

return air

return air noun: the mechanism in an HVAC system that pulls stale, unconditioned air out of a spaces and cycles it back to the furnace or air conditioner to be reheated or cooled; it works in a continuous loop with the supply vents to regulate indoor air pressure, filter out dust, and maintain even temperatures.

Noun

return air (uncountable)

  1. The mechanism in an HVAC system that pulls stale, unconditioned air out of a spaces and cycles it back to the furnace or air conditioner to be reheated or cooled; it works in a continuous loop with the supply vents to regulate indoor air pressure, filter out dust, and maintain even temperatures.

Questions about return air

What does return air mean?
Return air means the mechanism in an HVAC system that pulls stale, unconditioned air out of a spaces and cycles it back to the furnace or air conditioner to be reheated or cooled; it works in a continuous loop with the supply vents to regulate indoor air pressure, filter out dust, and maintain even temperatures.
What part of speech is return air?
Return air is a noun.

Words near return air in the dictionary

  1. return
  2. return ace
  3. return aces
  4. return address
  5. return addresses
  6. return air
  7. return back
  8. return ball
  9. return balls
  10. return bend
  11. return bends

Source and license

Adapted from Wiktionary: return air (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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