Need respirator recommendations

Thanks. I really appreciate the help. Are low VOC urethanes less toxic?
From my understanding, no. VOC means volatile organic compounds, basically solvents. Urethanes talks about the resin system used. They use isocyanates to cause the paint to harden. Remember Bhopal India? Water was somehow put in a tank containing cyanates. CO2 was released and suffocated a bunch of the people that lived there. Anything you breath in from paint is bad for you. The more, the worse it gets.