How does a fan kill? The most common explanations that Koreans generally offer are two. The most prevalent explanation is that the fan used directly on your body causes suffocation, because the fast-moving air around your face makes inhalation difficult. Alternatively, some Koreans also offer that breathing through skin constitutes a significant proportion of breathing, and the fast-moving air caused by the fan makes the skin-breathing difficult, leading to suffocation.
The other prevalent explanation is hypothermia, i.e. abnormally low body temperature. The idea is simpler – fan lowers body heat through dehydration, ultimately to the extent that it could kill.
If these explanations sound ludicrous, that’s because they are.