UNDER PRESSURE EXTINGUISHING TECHNIQUEA flame front is exiting the upper half of a lounge window (Over Pressure – Air Exhaust) with three polyurethane (PU) foam chairs involved in this room fire, which are decomposing and giving off high energy combustible gases (smoke) feeding the fire.Fire-fighters apply three small squirts of water spray droplets from a … Continue reading Under Pressure Extinguishing Technique