The bags are basically plastic tubes capped off with zip ties on either end.. I don't think they will hold up over a long period of time. When filling I can actually see traces of vapors escaping from where the bags meet the mouthpiece... Nothing serious though.

I have a few more questions for you..

How many bags should I be getting of vapor from one crucible?

Is there still usable vapor even after I can't see it anymore?

If the mouthpiece is on and the herbie is on as well am I losing precious THC when not taking drags or filling a bag (with the pump off)?

Will the volcano bags work with the HerbalAire?