Does anyone know of any mask that is sports friendly that filters out pollutants? Over twenty years ago, there was a product called Green Scene, or something like that, sold to commuter bicyclists. I remember reading an evaluation in Bicycling Magazine that indicated that it did filter out pollutants from cars and trucks, and also enabled the wearer to breath hard.
Sometimes I will hop around near busy intersections and the lungs are going hard. I worry about the chemicals I inhale especially during the heavier workouts, albeit short ones.
Yeah, I know, I could find an area that was not near a busy intersection to work out, but sometimes that's not convenient.