Since when does a doctor who sells pills and products called "Miracle Whey" have access to nanoparticle measuring equipment for electronic cigarette vapor?
I think he's fear-mongering so that people would run to him for products and suggestions. I see no reason to believe based on his website information that's he's qualified to state what he did in any factual manner. I don't believe he's qualified to operate any nanoparticle measuring equipment (which is mostly used by mechanical engineers for other uses) nor do I believe he's qualified to interpret the data properly in order to come to a definite conclusion based on his comments which doesn't even qualify to be a valid hypothesis even.
As a doctor he should know that in order to expect merit to his claims, he needs to provide all the data to include names, references, equipment used, times, dates, location, specific products to include manufacturer and model numbers of what's being tested and what was used to test and the processes used in those tests, etc. Anyone's who has written a thesis in college should already know this.
If you live in a big city, you're already breathing in dangerous amounts of toxic substances outdoors. When you drink bottled water, you have no definite guarantee that you're not also drinking in some of the plastic container that might already be breaking down at the molecular level without you knowing. A water bottle stored in a dark, cool place is often more stable (at the molecular level) than one exposed to sunlight (UV), even behind a glass door, refrigerated.