Mr. Richards is a Triathlete, trying and trying to qualify for the Ironman World Championships. He advocates clean air after seeing how quickly his Totobobo filters turn into dark grey from pristine white just after a few rides to work.
I was shocked when received the used filter from G. Richards. He collected the used filters last year and the results speak for itself – you don’t want this stuff, such as PM2.5, get into your lungs!
For those curious, here are some details of Mr. Richards’ Bike2Work route:
From February to July, 2014, from Leinster Gardens, across Hyde Park and finished at the other side of River Theme. A 35 minutes cycling each way.
From July to December 2014, from Leinster Gardens to Hanover Park, 20 minutes each way.
Mr. Richards found that his right-side filter alway turns darker than his left-side filter, because he rides close to the curb and traffic is always on his right. Each pairs of filters were used for two weeks for riding to and from work.