The resin just smells really toxic, it's actually only bad enough to give you a fume high (Toxic Inhalation Psychosis), but it can't really kill you unless you spend like a constant 10-20 years around it.
The MEKP hardener however is the real nasty stuff! Those fumes can cause significant damage under constant short exposure. Mix them together and you get the worst of both worlds but after it's 100% hardened and cured (2-8 hours depending) you can literally eat off of it without getting into trouble as it is now a plastic (anything involving a resin-catalyst mix falls under the category of thermoplastics). I wouldn't personally recommend eating off of it, but it is 100% plastic after you are done and no longer toxic.
At any rate, wear your respirator, work next to an open window, and use a fan to blow the fumes out that window until the resin is completely cured.
EDIT: As a side note, Acrylic is food safe even though it contains cyanide. And there are a lot of plastic plates and cups that are made out of a plastic that consists of a melamine-formaldehyde compound, and they're all completely safe to eat off of in their mixed polymer state... just don't microwave them or heat them up in an oven.
Acrylic you can heat form but DO NOT EXCEED 375°F! You will start to see bubbles which are actually cyanide gas decomposing out of the rest of the plastic. It's good because you can do this in your oven and actually make visors by bending the saggy acrylic around a large round form, let it cool, and then use gold auto tint on the inside to get it perfect.
You can also cast acrylic if you have an autoclave rig.
