Re: Air Filter Advice? Air Pollution at 299 Today! Home›Forums›General Discussion›Air Filter Advice? Air Pollution at 299 Today!›Re: Air Filter Advice? Air Pollution at 299 Today! November 13, 2012 at 1:33 pm #23514 LarryParticipant Wore Respros on the ride this morning. It seemed worse, or at least looked worse, on the way out to 青城山 than in the city center.
