I can see that you simply copied (plagiarized) that off the internet. None of it is relevant to
vaping equipment. This is another example of someone going way outside of their area of expertise and misleading good-intentioned people coming to this forum to get relavent information. You really should be more considerate to them and everyone else here trying to help.
Oh, by the way, to everyone else here that even cares, he plagiarized the above info off the
Lenntech website, directly (that's illegal) (and immoral). Just copy and paste his text into google, hit search, and you'll see it on their website.
My info and Roxy's info come from experience. We're trying to help people.