Yeah but that's never going to happen and you know it, so just explain why the vape test is unnecessary. Differences in droplet size?
Fine
- surgical masks were never designed to prevent aerosols, which the vape "smoke" (vapors) is
- cloth masks are even more unsuitable; the surgical masks usually have some filtration capacity, and inhaling creates a (very weak) seal; they also have a layer to prevent blood and droplets from coming into contact with the nose/mouth mucosae (pray that it doesn't enter your eyes though, or wear goggles). Cloth mask have basically no filtration capacity (more layers increase their weak capabilities) and are basically fashion statements.
- respirators are incredibly diverse in their functionality; massive amounts of respirators that cannot pass any test exist on markets, majority from China, Korea etc., the KN95 ear loop models. Respirators without a nose piece and over the head bands should not even be taken into consideration.
Filtration capacity is nearly entirely dependent on the seal made with the face, which is enforced during inspiration. In a proper environment, with toxic fumes etc., you would have the workers wear multiple respirator sizes and seal test each against a specific device created for that. This essentially is not a thing in hospitals and was not a thing during the height of the pandemic either; you would've been extremely pleased to have a good brand, well fitting respirator which you would carefully reuse for days, as the supply was very small.
Still, even well fitting respirators have varying filtration capacity, and because the pandemic meant rushed and dubious sourced supplies, it's not uncommon to have respirators which are barely above a surgical mask in capability.
Now, in the video posted by Wood, the lady can't even breathe in her respirator; that is super-fake and obviously so; we would wear these for 8-10 hours each day. During summer and 35C heatwaves. You'll breathe just fine, and your SpO2 will be 99% as it should if you're healthy. It's not pleasant, but it won't hurt you.
When she tries to inhale vape through the respirator, she only manages to burn the fabric. So the test does not even happen as she gives up on it.
A much harder to discuss (lack of clear data) issue is particle size vs efficiency. There are multiple studies about the particulate matter in vape smoke, common figures seem to be in the 250-450 nm range. Respirators of a N95 quality have a filtration efficiency of "approximately 99.5% or higher at about 0.75 micron" (750nm), that grows with bigger particles. You can see from the figures that questions are in order to ascertain if a respirator can be efficient at the particulate size typically found in vapes. But wait. It's even more complicated.
The fibers in the N95 respirators are electrically charged. And they are efficient, to a rather ambiguous degree, towards much smaller particles.
So this discussion is actually quite difficult and would require, as usual, specific testing in a lab, that can be replicated across other labs.