5 ms·
The idea is that the fan is deployed in a closed room and over time, all the air in the room will be circulated through the filter.
by timthorn 6y ago
The idea is that the fan is deployed in a closed room and over time, all the air in the room will be circulated through the filter.
- wincy 6y agoBut isn't using a fan too long in an enclosed room dangerous? https://en.wikipedia.org/wiki/Fan_death https://en.wikipedia.org/wiki/Fan_death
- mmastrac 6y agoNo. This is yet another urban myth. "Despite no concrete evidence to support the concept, belief in fan death persists to this day in Korea,[further explanation needed] and also to a lesser extent in Japan.[1][2][3]"
- ortusdux 6y agoIIRC, this myth stems from a successful govt propaganda campaign that aimed to reduce power usage at night and put an end to rolling blackouts.
- mminer237 6y agoThe Wikipedia article cites that as being yet another myth, although it is disproven by evidence of belief in fan death long before the blackouts.
- WillPostForFood 6y agoThe 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."
- kemayo 6y agoThat 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.
- rrrrrrrrrrrryan 6y agoI'm sure the comment was sarcastic.
- encom 6y agoBetter downvote, just to make sure. --Hackernews
- wincy 6y agoHaha I deserve the downvotes, it’s okay. I was being dumb because I thought it was funny.
- smcl 6y agoIt's a shame, I realised you were joking and I liked it. I think the idiomatic HN way to indicate this unambiguously but subtly is ending with "/s" for "sarcasm"
- nottorp 6y agoHN doesn't appreciate funny.
- darkerside 6y agoIt is funny :) I grew up believing in it (because my parents), and it took me a while to shake. At some point it became more of a superstition, but was still nervous to leave it on overnight...
- bloomingeek 6y agoI have worked night shift for 30 years. I sleep with a box fan in my bedroom with the door shut to filter out noise. Works really well.
- renerthr 6y agoThe Japanese version of that Wikipedia article has the Japanese phrase for "Urban legend" in the title, unlike the English version. The literal translation of that title would be "Urban legend of electric fan".
- djrogers 6y agoNo, it’s not.
- solarmist 6y agoLol. Been a while since I’ve seen that.
- deleted 6y ago[deleted]
- gmfawcett 6y agoTo the downvoters on wincy's comment: please let's not downvote people for asking questions, or just because you believe they are misinformed -- that's what replies are for.
- pdpi 6y agoYou shouldn't downvote people for asking questions, but asking a question and supporting it with a link that tells you the answer is fair game, especially when your "question" is an argument hidden behind a question mark, and the link disproves that argument. There is, of course, the possibility that wincy's comment was meant to be tongue-in-cheek, though. I personally can't quite tell which way it was meant.
- gmfawcett 6y agoI guess I was being charitable, and imagining that the poster might be a Korean of a certain age where this myth held weight. The article suggests that young Koreans have changed attitudes, but that doesn't mean that everyone has. I think the comment replies to his question did a fine job challenging the myth. Obviously it's just my opinion, but I'd rather save downvotes for people who were clearly trolling or maliciously off-topic (and I don't see that here).
- pdpi 6y agoTo be clear, I didn't downvote their comment — I don't think it warranted it — I'm just saying I can sympathise with the argument that a comment that doesn't add anything useful to the discussion is a fair target for a downvote. Saying "But what about x?" when you yourself provide a link that says that X is a non-issue doesn't make for an engaging discussion. "But what about x? This link suggests it's not a problem but I think it is because of y" does make for an engaging discussion, even if y is seemingly nonsense.
- gmfawcett 6y agoThat's a fair point. Thanks for the respectful conversation about this. :)
- adolph 6y agoSome effects of extremely low frequency electromagnetic fields (ELF-EMFs) on human spermatozoaare reported. Significant increases in the values of the motility and of the other kinematic parameters have been observed when spermatozoa were exposed to an ELF-EMF with a square waveform of 5 mTamplitude and frequency of 50 Hz. https://onlinelibrary.wiley.com/doi/pdf/10.1002/bem.20278 https://onlinelibrary.wiley.com/doi/pdf/10.1002/bem.20278