How much THC do you reckon a cigarette filter blocks out?

[Weezard]

Nicotene seems to get through them fine, then again an unfiltered cigarette sends my head spinning, which im not into, for nicotene anyway.

Cigarette filters would make easy crutches, would anyone beg to differ?

Too much!

Actually there was a study that concluded that filters were a bad Idea.
It will tell you exactly how wastefull it is compared to joints and waterpipes..
Granny stormcrow is the best one to ask for the original article.
It's worth reading.
I only wish the testers had included a simple glass pipe along with bongs, n joints, n filters.

Aloha
Weezard