Yet another You Tube video supposed to be comprehensive yet sadly lacking unless you have no understanding of SI units of measurement .
A hair will not pass through the metal screen unless it arrives dead square on which would never happen so not exactly truthful
And o course he seems to think that the paper filters have strait holes in them rather than a contorted passage and despite what he said there is no way a grass blade can pass through one
A tiny bit above all of the can opener oil filter videos but only just so at 22 minutes a waste of 20 minuted but it does earn him about 0.5¢