who wants to inhale carbon dust and computer dust? which by the way ding dong, the computer fans are not brush motors, but your vacuume cleaner is. basically my point for bringing this to the attention of the hemp community is simply because i would have wanted to know this information. if u want to inhale a foreign carbon dust which does not dissapear in your lungs, it stays there, well then go for it, but if u want to know what vapir seems to want to keep a secret, then i have provided that for u and, u are welcome