4 ms·
A bit of googling and a good dose of intuition leads me to think that the output area of a fan cools faster than the input. Reason being that air is more likely
by jhanschoo 8y ago
A bit of googling and a good dose of intuition leads me to think that the output area of a fan cools faster than the input. Reason being that air is more likely to be turbulent after a foil, and turbulent air transfers heat better.
On the other hand, if the purpose is to express, say, smell, blowing the smell out is the better solution.