this post was submitted on 06 Jul 2026
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That's not fair. This is legitimately something that probably nobody really considers. For almost everyone, HVAC starts and stops at climate control.
This is absolutely something HVAC professionals consider, buildings with a central HVAC system are constantly mixing in outside air for exactly this reason. Installing co2 monitoring in rooms is also done for this exact reason.
This blog post is not for HVAC pros.
No, but it shows that hiring one is a worthwhile investment.
What about "I'm opening a window / going outside for some fresh air"?
And you think when people say that they're talking about CO2 levels?
Maybe not knowingly, but people certainly judge a room as "stuffy".
So, because we may have this intuition, that makes this blog post worth mocking then?
Do we really need a blog to tell people about stuffy air?! I'm more and more surprised by how dumb people are. Soon we'll have blog posts reminding us to inhale and exhale.
This article is deliberately phrased to spark precisely this kind of comment thread, and we've all walked straight into it.
I think that when people say they need fresh air, they are likely to be thinking that. Many people in a closed room for a time makes the air "stuffy". People may not realize it is CO2 on an explicit intellectual level, but realize it on another level.
Oh, so that's why you were ridiculing the author for sharing the idea? Because people may have a subconscious intuition about CO2 in the air?
Oh my, let’s get dramatic here.
Yes, that’s right. I believe that the concept of fresh air helping people in a closed room is not novel. In fact, many people are aware of co2.
But back in real life where we’re not angsty dweebs who confront people about minor comments online, I was really just making fun of corporate management culture. Hope that helps your understanding.