I’ve been going for a 5km walk nearly every day since the epidemic. It’s a wide out door space, unpolluted with oxygen producing trees. So why use or waste a mask in this environment. You shouldn’t need to or waste a mask, the traditional medical mask is designed for closed, sterile spaces and to be disposed of once used. Then you have other people without a mask who will pass you, bring up their hands to cover their face away from you. This is also wrong. When walking past someone it should be simple, close your mouth and exhale through your nose until at a safe distance to breathe again. It really shouldn’t be hard to master that practice.