[heavenlyblue]

Sounds like a bunch of anti-vaxxers coming together and saying vaxxing doesn't work for them. This is the same reason why pilots are being trained not to listen to their own senses when flying: because those senses work against their reason.

I can see how a single fan blowing right into someone's face could be more efficient at cooling that person than the same fan working for the whole room; but frankly you also forget about all of the other pupils who aren't under the direct "sunlight".