What is “fresh air”? Is air not just air?
In: Earth Science
Also, if your locked up in a room, even a room thats recirculating air through an ac unit or the like, the air can start to feel “stale” or “stuffy”. This is when you have people saying “open the window and let in some fresh air” in which you are simply cycling out the old stuffy air with “fresh” air.
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