Surgical masks you can probably get away with, particularly if there is wildfire smoke in the region or a disease scare. In very cold weather regions you might

Surgical masks you can probably get away with, particularly if there is wildfire smoke in the region or a disease scare. In very cold weather regions you might be able to get away with a scarf covering your lower face. Walking into a store with other sorts mask on in America runs a not insignificant chance of getting you shot, or at least held at gunpoint. But more importantly, you'd be traumatizing everybody else in the store. When somebody walks into a store with a mask on, more people expect 'robber' than 'privacy enthusiast'.