Do they work? what is a good brand? easy to breath? do you have to replace filters or anything? I live in a comm. with 15,000 people but with a lot traffic due to the highway and i can't stand the fumes. I don't see how people in NY etc. can deal with it. It must horrible. they must be immune to it or after a while there GABBA kicks in. thanks in advance




"war on terror" If terror is a form of warfare and war terrorizes then what is the "war on terror"

I recommend https://www.respro.com filters. They are meant for 'active' sports, and even sell models recommended for cycling. They have different levels of filters, depending on what you want to filter out, and the fancier filters are more expensive. The filter elements do need replacement, but not very often.

peace,
sam