My question is if I were to cap crushed mdma crystals into 00 gelatin caps would I face any risk of neurotoxicity? I ask this because smelling the mdma means that particles are going up your nose and if they go up your nose they enter your body and if they enter your body they're able to cause "havoc" per se. I would be using latex gloves and would be wearing a shirt to cover my face and I plan on doing the capping outdoors.
Of greater concern is all the dihydrogen monoxide you are exposed to. Are you aware that inhaling even a small amount can kill you?