How does marine grade ss mesh rust? I think the mesh that you tested (if indeed you have tested any) was of a poor quality.
Do you have to prove it to anyone - yes, that would be a very good idea if you did.
You also say you "believe" silica is better than cotton because it can't be burned - cotton doesn't burn in an atomizer because it is cooled by the juice.
And whilst titanium may well be biocompatible, we do not inhale the wire, we inhale the vapour the heated juice produces.
Too much belief on this thread and not a shred of proof.
I think this thread could use a chill pill. As long as mesh doesn't have a super high chromium amount, then it's completely harmless, like basically any metal that goes into your atty, it can oxide, and people freak out about that oxide because mesh users intentionally do this to prevent shorts. Welders inhale at least 100x the amount any vaper will inhale, and even they have very minor ailments from them, combine that with the fact that mesh is always covered in liquid to "hold down" the oxide, and your left with a VERY negligibly small worry. Inhaling most oxides are no more dangerous than inhaling sawdust, it'll cause irritation, that may lead to problems waaaay down the road if your inhaling a ridiculous amount of it, but us vapers are subjected to that amount even in the most extreme situations. So mesh isn't anywhere near life threatening, if your really sensitive to foreign material in your lungs (any type of dust, oxide, whatever) you may notice it on a terrible dry hit, but I can almost guarantee you won't get cancer , even if you stand over a pile of burning mesh for a short time.
Silica does have a higher heat tolerance, BUT, that can be a blessing and curse. Because of the fact that it can take heat without technically burning, users may abuse it accidentally (because they don't even realize they're burning it). Most can tell when it's "charring", but when that happens, silica can break down in little microscopic slivers, kinda like fiberglass but not as scary. Factory workers around silica get an illness known as "silicosis" (look it up) which is a fancy way of saying their lungs were very irritated by microscopic slivers of possibly sharp silica fragments, worst they get at the extremes are asthma and lesions on the lungs. BUT again, these are factory workers inhaling micrograms daily, vapers will never be inhaling this much, if any silica. Unless your the type that inhales hard on dry hits often, you have nothing to worry about whatsover.
Cotton is also safe, because when it's burned, it turns into fine smoke much like a fake hollywood cigarette, completely harmless to the lungs unless, again your a factory worker inhaling tons of it over decades. And even then the most 30 year workers ever developed was some temporary light COPD, which quickly went away after a health vacation.
So in the end, all three are harmless, without a doubt if you know what your doing. I personally like cotton, simply because it wicks faster, and it's organic/softer on the lungs when accidentally burnt (which won't happen if you know how to avoid dry hits, my cotton doesn't even turn yellow anymore), and tastes a tad more natural. But I certainly have used and enjoyed silica quite a bit, unless your a factory worker, there's nothing to worry about

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