Hello everyone, Over the past week or so, I have spent a considerable amount of time researching the health benefits of vaporization, reading through countless medical journals & even contacting lead scientists involved in these studies. I want to share my findings with this community today, in the hopes of helping to answer questions & also with the intention of getting answers to questions of my own. To seriously consider the safety and efficacy of cannabis vaporization, there are a few aspects that need to be considered: what elements are present during combustion, what toxins are carcinogenic, what toxins pose health hazards & can we eliminate the undesirables while still efficiently delivering cannabinoids (THC, CBD, CBN, etc). While we know that vaporization is safer than combustion, the real question is: is it entirely safe? A 2003 study done by Dr. Dale Geiringer that was sponsored by NORML/MAPS was designed to evaluate the efficacy of vaporization using a Volcano in terms of cannabinoid delivery & toxin levels in the vapor as compared to combustion. They used a Mass Spectrometer to analyze the vapors following heating the cannabis to temperatures between 155-218 C. Here is a link to the study if you wish to look through it https://docs.google.com/fileview?id...jUtMWZmMy00ZTYwLWE5Y2EtN2E4OTIyYjcxZGNk&hl=en. Without going into too much detail regarding the study, I will summarize the results; The major finding of this study was a drastic reduction in non-cannabinoid compounds in the vapor from the Volcano including carcinogenic toxins. However, the study was only testing for gases of HIGH molecular weight. It did not determine whether toxic gases with LOW molecular weight, such as ammonia, hydrogen cyanide & carbon monoxide were present. Still with me? Lets move on. I emailed Dr. Gieringer regarding his study and whether any followups had been done on the gases with LOW molecular weight in vaporized samples. He responded and directed me to a study done in 2008 by Roger Bloor which sought to detect these exact toxins. Here is a link to this study if you wish to read through it: https://docs.google.com/fileview?id...mQtOGEzZS00NmQ3LTk5YWItMGUwOTAyOGQwMzVj&hl=en The study used 2 vaporizer devices (a Volcano & another device called the "Blue Meanie"). I will summarize the results below: So the next logical question to ask is whether the inhalation of Ammonia at the discovered range of 50-70 p.p.m. has any adverse health effects. A study was conducted to test the health effects of Ammonia exposure at the 25 p.p.m. level with the results showing no detectable effects on respiratory function. What implications does this have for the 50-70 p.p.m. range? This is where I turn to you the community, in the search for answers. It is apparent that Vaporization as a whole is extremely efficient in the delivery of cannabinoids, reduction in carcinogens & toxins & overall a much healthier alternative to smoking. However there is one last piece to the puzzle before we can declare this entirely safe & that is the implications of these increased levels of Ammonia. I hope you enjoy these findings & can possibly also provide some insight/information regarding Ammonia exposure based on your expertise/research.