>>1360901For protection skimask is the way to go then, if you are going to use it in city environment and comfy walks you don't need harcore lenses (3/4 rating I mentioned before).
Just check for adherence of the mask, so you can't get cold coming in, also check if the mask has anti fogging treatment.
A good mask should have padding on the rims, to get better face fit.
Important tip, if you wear a balaclava or a scarf, avoid breathing out with your mouth, the warm air will rise up, sneak into the mask, and make condensation and freeze your eyelashes.