Don’t forget option C: in cold, dry weather, a disposable mask can be an impressive comfort improvement. And you can throw it away when it gets disgusting. The

Don’t forget option C: in cold, dry weather, a disposable mask can be an impressive comfort improvement. And you can throw it away when it gets disgusting. They often outperform balaclavas. Or option D: allergies. A well fitted disposable mask removes allergens, at least until it collects so many that it starts triggering allergies all by itself. Achoo!