[tpscruiser]

andym.
Smoking in your PT has nothing to do with the cabin air filter.
The filter only filters air going from the outside and into the PT through the HVAC system not the inside air like a house system. On or off the pavement doesn't matter, dust,pollen, bugs even small leaves are everywhere and can be drawn into the system and if it collects on the coils, can lead to the funky odor people talk about coming from the A/C vents here on the forums.The filter isn't a cure all for the funky odor but helps prevent it.