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by mrob 3002 days ago
>Someone who can comfortably inhale 3mg/ml of nic might get slightly nauseous and uncomfortable even at 6mg/ml, definitely at 9mg/ml

That only makes sense if there's a standardized inhalation size, which there isn't. I've seen people using vaporizers specially designed to make huge clouds, and they're obviously using low concentration. If they used a stronger concentration they could get the same effect with a smaller inhalation size.