Combustible Dust: an Insidious Hazard
"Safety video depicting how accumulations of combustible dust at worksites can provide the fuel for devastating explosions that kill and maim workers, shut down plants, and harm local economies.
.."For each accident, the animations show how explosive dust accumulated over years on plant equipment, pipes, floors, ducts, dust collectors, and other areas. The video shows how conditions develop needing only an ignition source to set off a primary explosion, which lofts the accumulated dust, leading to deadlier secondary explosions." from CSB press release