Fan Blade Performance and Selection 

Which is better, more blades or less? I assume less blades will draw more air?

Sir, which stand fan blade design will create 0 sound while rotating

Would it work if i used a regular electric fan as an alternative exhaust fan facing outside the window? Its blades however are not quite wide unlike the common exhaust fan wich is wider

Sir how can we design unidirectional fan blades for clockwise and anticlockwise direction in different time . For plastic fan blade 6 inch diameter .

Endah.tatang.🙋🏿‍♀️🙋🏿‍♀️.

mf just wasted my 10 minutes talking about common sense