Uncle Rob is back (haven't seen a new video from him in over a year) with a "scientific" demonstration as to the effectiveness of masks. I was actually kind of surprised by how dramatic the results were. Also, it is fun to watch someone play with fire.
This turned out to be a sort of serious video from Uncle Rob whereas in most of his other videos, the solution involves blowing things up. Check out the video below and judge for yourself on whether or not masks work.
Check out more Uncle Rob here: https://wiot.iheart.com/featured/hammer/content/2017-10-11-uncle-rob-my-new-favorite-youtube-dude/