Cutting into a drywall ceiling can be a very messy task. Designed for electricians, A/V technicians and security contractors, the Drywall Trapper is an innovative device to keep dust and debris out of your eyes, face, mouth and off client’s furniture. Problem solved. Without the Drywall Trapper, debris and fine drywall spreads like a virus. It ends up on the floor or carpet, the bottom of your shoes, in your hair and on your clothes.