Last week we found out that second-hand vapour is about as hazardous to you as normal air, this week we find out it might actually be good for the air around you and those in the air around you. The ingredient that is having this surprising effect is propylene glycol (PG) which is in all eliquids, some have it in smaller quantities but it’s still there. Back in 1945 a scientist called Dr. Theodore Puck along with his team discovered that vaporised propylene glycol provided some very significant health benefits.
The study his team conducted is titled “The Bactericidal action of propylene glycol vapor on microorganisms suspended in air” and is still published on the NLB-NIH website to this day.
Their original study discovered that:
“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”
What does that actually mean? Pneumococci, streptococci, staphylococci are the bacteria responsible for illness such as pneumonia, strep throat, food poisoning, impetigo, cellulitis and many more. These are all scary, serious illnesses but as a vaper you carry a secret weapon. The PG from your ecig kills them off. These effects happen in parts per million, you don’t need neat PG for it to happen. So depending on the quantities in the air around the vaper you might be inadvertently cleansing the air around you of these bacteria.
Why am I bringing you 70 year old news? Well, research never stops and now the bacterium that causes meningitis can also be added to the list of bacteria that are running scared from your ecig and PG. The PG in your vapour doesn’t just protect you; it protects those near to you as well. So next time someone tells you vaping is bad for your health just think of Dr. Puck’s research, walk away and leave them to enjoy their potentially devastating bacteria.