FIELD: fire defence. SUBSTANCE: at first maximum content of oxygen, at which burning of all combustible materials in room ceases, is calculated, and summary area of all apertures in room is measured. Fire extinguishing material is delivered into room by pneumoacoustic method. Fire fighting time is directly proportional to difference in initial and maximum content of oxygen and summary area of room apertures and reversely proportional to room volume and amount of fire extinguishing material with preset dispersity of liquid phase. EFFECT: enhanced reliability of fire fighting.
