Taken from the House of Lords Report on the Erowid.org website.

Erowid Cannabis Vault : House of Lords Report

If you scroll down to section 4:17 it states...

Cannabis smoke contains all of the toxic chemicals present in tobacco smoke (apart from nicotine), with greater concentrations of carcinogenic benzanthracenes and benzpyrenes It has been estimated (BMA p 11) that smoking a cannabis cigarette (containing only herbal cannabis) results in approximately a five.fold greater increase in carboxy.haemoglobin concentration[12], a three.fold greater increase in the amount of tar inhaled, and a retention in the respiratory tract of one third more tar, than smoking a tobacco cigarette.

I now believe that smoking cannabis is just as bad as cigerattes or even worst for the lungs and the brain too. Its either this.

1. Smoke once in awhile and not everyday.
2. Use a vaporizer.
3. Use it for baked goods.

Not trying to bash on cannabis fellas but please believe. Regardless of what any pot users believe its very harmful towards the health (if smoked)

Bad enough for me to of sold the volcano vaporizer but I dont care only because I dont smoke weed much anymore for health reason. I do like to kick back roll a spliff ans blaze but once in awhile as I believe a spliff every now and then won't hurt.