Federal Mask mandate

My common sense tells me that all masks, short of the N-95, are useless because they don't stop any virus from passing through the material and they don't seal tightly around the nose and mouth to contain the virus. Screen doors on a submarine or a chain link fence to stop mosquitoes come to mind. I am all for proven methods to stop this virus but wearing a mask has not been proven to do anything positive other than being a feel-good method.

I have not seen one scientific mask study favoring masks. I have seen one scientific study saying masks aren't effective (Denmark study). Wearing a mask to beat Covid is pure symbolism, like wearing a colored ribbon on your coat to fight a disease.