I want to start biking again but I worry about sucking down gas and diesel fumes, so I wear a 2 filter trademans gas mask on my scooter.
I've seen these bandanna thingys
http://www.wiggle.co.uk/c/cycle/7/Anti_Pollution_Masks/ with a carbon filter in them but they are kind of expensive and make you look like a ninja which cant be helped I suppose. They only last a month or so and their effectiveness has been queried.
Does anyone know of any techniques to reduce bad air while cycling? Avoiding rush hour and route planning (especially in relation to prevailing wind direction) seems a good place to start....
Apart from being to windward to use a sailing term...(upwind)