Both the topcoat and primer were water-based urethane acrylic ... Invest in a cartridge respirator to spray paint. Don’t use a dust mask; it won’t provide adequate protection from paint ...

Reportedly, 3M's 7192 Organic Vapor mask is designed specifically for isocyanates, and it costs about $14.00 at most on-line paint stores. Also, users should wear an impermeable spray suit ... agree ...