Maybe gokiburi can rent you his Nishiki Olympic.

TJ: Respro filters are pretty robust http://www.respro.com/popup_filters.php
http://www.respro.com/urbancommuting_cycling.php

I am seriously considering getting one. The exhalation valves ease breathing somewhat. In terms of heat and comfort, I'd have to try it out. On the other hand, once you get particulate matter in da lungs, it's there for life. I just don't relish sucking diesel exhaust with a high humidex when climbing -- which seems to be happening a fair bit.

And if I get the nightsight mask, using some judicious electrical tape may give it a great Skeletor tm look.