The Vincent Dunn Video Collection Featuring Backdraft & Smoke Explosions and Master Stream Safety Finally, classic fireground training videos from Vincent Dunn, Deputy Chief (Ret.), Fire Department of New York, are available on one DVD! Master Stream Safety This video describes the safe use of one of the most important tools in the fire service, the master stream. Chief Dunn discusses general safety rules for master stream use and the safe transition from interior to exterior attack. Approx. 20 minutes. Originally released on VHS in 1991. Backdraft & Smoke Explosions Superheated smoke is strong enough to push back the attack team and injure personnel. Chief Dunn helps you identify its causes and warning signs, and shows you how to protect yourself and your department personnel from injuries. Originally released on VHS in 1991.