A research study has recently resurfaced which indicates that the propylene glycol found in e-cig vapor is shown to kill numerous types of airborne bacteria that can lead to meningitis, pneumonia, impetigo, and even strep throat. Scientific conclusions such as these are seemingly directly contradictory to other previously published reports by public health agencies like the Centers for Disease Control and Prevention (CDC) and the U.S. Food and Drug Administration (FDA) which have long demonized vaping as a smoking cessation tool.
Perhaps even more strange, the research is more than 70-years old and was conducted by a team of scientists led by a world-class physician by the name of Dr. Theodore Puck. Upon his death in 2005 at the ripe, old age of 89, Puck was so highly regarded that The New York Times eulogized his many accomplishments in a beautifully written tribute. Still, the research seems to be largely ignored by the CDC, the FDA, and other anti-vaping activist groups.
The health benefits of vaporized propylene glycol
The study is entitled The Bactericidal action of propylene glycol vapor on microorganisms suspended in air is still readily available for review online via the U.S. National Library of Medicine. And this is not the only scientific study of its kind conducted by the Puck team. During the 1940s, they conducted several. According to the previously mentioned research, vaporized propylene glycol is shown to skill the airborne bacteria pneumococci, streptococci, and staphylococci.
“Data are presented showing the minimum glycol concentration necessary for effective bactericidal action on various microorganisms. Pneumococci were killed by amounts of propylene glycol as low as 1 gm. in 20 million cc. of air. Concentrations of 1 to 5 million to 1 to 10 million were required to produce the same degree of killing of streptococci and staphylococci. The observations here reported add further support to the previously proposed conception of the mechanism of the lethal action of propylene glycol vapor, namely, that a bactericidal concentration of the glycol accumulates in the bacterial droplet as a result of contact with and absorption of glycol molecules from the surrounding atmosphere.”
“Pneumococci were killed by amounts of propylene glycol as low as 1 gm. in 20 million cc. of air. Concentrations of 1 to 5 million to 1 to 10 million were required to produce the same degree of killing of streptococci and staphylococci.”
Why would the CDC and the FDA fail to acknowledge this valuable, pro-vaping research? The answer is unclear, but many in the vaping community believe that public health agencies have a vested interest in killing the American vaping industry to favor Big Tobacco and Big Pharma. After all, it is these industries that regularly contribute millions of dollars in campaign contributions to elected officials on both sides of the political aisle.
So, the next time someone complains of second-hand vapor as being “toxic,” vapers should quote the 1945 e-cig study by Dr. Theodore Puck. Unlike the thousands of carcinogens found in conventional cigarette smoke, the propylene glycol from e-cig vapor may actually be good for your health.