I've noticed in the past week a few cyclists wearing these pollution face masks type things. Mainly on the north Edinburgh paths.
I have no scientific knowledge as to their efficacy but I'm sure I heard they are next to useless as the bits that cause the damage are really tiny.
I perceive the quality of the air in Edinburgh as actually pretty good given our proximity to the sea and the almost perpetual breeze/gale blowing.
I would imagine cycling in a mask seriously impedes the pleasureable experience of cycling. Does anyone have experience of using a mask or thoughts on their necessity or otherwise?