This guy is an idiot. He told my grandmother and I that mask do not deprive you of any oxygen and that you can run with one on and it doesn't make any difference. That's the stupidest thing I have heard in a while. Anyone with an ounce of common sense would know that cant be true. People are getting dizzy and even passing out because of mask. If this was true why do all athletes take their their mask off while playing? Why do children under a certain age or people with certain medical issues aren't required to wear mask? That's because it restricts proper air flow.. I have a question for Canfield, what do the studies say about COVID and being obese and when was the last time you ran with or without a mask. #potbellypig