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A comment on Dyson air purifier outperformed by cheap DIY box fan filter in Marketplace test. Parent comment

Re:Dyson air purifier outperformed by cheap DIY box fan filt... by WillPostForFood on Thursday February 11, 2021 @12:02PM (#26104045)
The wiki page links to the EPA which does advise against fans in a closed room when it is over 90F:

Don't Use a portable electric fan in a closed room without windows or doors open to the outside. ... Don't Use a portable electric fan to blow extremely hot air on yourself. This can accelerate the risk of heat exhaustion. ... Don't direct the flow of portable electric fans toward yourself when room temperature is hotter than 90 °F."

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Re:Dyson air purifier outperformed by cheap DIY box fan filt... by kemayo on Thursday February 11, 2021 @12:21PM (#26104319)
That one's interesting in part because South Korea mostly doesn't get that hot. (Summer highs seem to be mid-80s Fahrenheit.)

Looking at climate data for the country, I was struck by how similar it is to upper Missouri. Saint Louis is about as humid, but a bit hotter on average. Which would make me suspect that if "fan death" was a thing, we'd be seeing it in a band of US States that're similarly hot and humid.

Speculative difference would be if air conditioning is really uncommon in South Korea, but presumably we could even that out by comparing to poorer people in the US.

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