> as a healthy person does wearing a mask has any effect? This all depends on the type of mask and how tightly it fits against one's face. A mask made from co

> as a healthy person does wearing a mask has any effect? This all depends on the type of mask and how tightly it fits against one's face. A mask made from cotton has been shown to be ~70% effective at filtering a virus from droplets in the air: https://www.researchgate.net/publication/258525804_Testing_the_Efficacy_of_Homemade_Masks_Would_They_Protect_in_an_Influenza_Pandemic https://www.researchgate.net/publication/258525804_Testing_t...