During the last Cycling in Singapore meetup in May, Chu Wa passed me his 'designed and made in Singapore' totobobo mask to try out while cycling.
In early July, I finally had the occasion to use it when I headed down for a gathering in Sengkang immediately after work. The totobobo mask is soft, light, has mainly reuseable parts, covers a variety of face-sizes and can be modified to custom-fit a person's face. Also cheap!
But is it meant for use while cycling? Chu Wa suggested I try it out to see for myself if was viable. Since my ride to Sengkang was a peak-hour ride, this was the time to see if the mask would make a difference.
Read "Filtering peak hour air (on a bicycle) (Otterman speaks, 04 Aug 2008) to find out how it turned out.