2 ms·
They have moving parts. There's a normal fan at the bottom. See here: https://en.wikipedia.org/wiki/Bladeless_fan https://en.wikipedia.org/wiki/Bladeless_fan
by kerkeslager 9y ago
They have moving parts. There's a normal fan at the bottom. See here:
https://en.wikipedia.org/wiki/Bladeless_fan https://en.wikipedia.org/wiki/Bladeless_fan