this post was submitted on 07 Jul 2026
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hmmm
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For things that are "hmmm".
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What a weird statement to keep repeating when it has such a big exception. "ACs don't do X unless its one of the most common types of AC."
ACs clearly do X, just not most of them. A lot of them actually explicitly do exchange air with the outside, because single hose portable types are widely used everywhere. They aren't ideal, but they are very common and are indeed "AC."