I'm someone who actually is chemically sensitive.. traffic isn't usually a problem, even though I have always despised the stench of diesels (I hold my breath when buses go by).

But now that winter is over, I'm noticing this week that traffic fumes seem to be pretty crap. And I'm currently living in a valley.

I was wondering if traffic fumes bother other people too, and what they do about it.. I saw on the web this yellow mask for cyclists with a carbon filter.