FIELD: fire extinguishing systems efficient for limiting injury caused by generated smoke. SUBSTANCE: system has, at least, one sprayer or injector installed one or each into hole of ventilation channel for suction from controlled zone to ventilation pipeline. Hole of ventilation channel is added with one additional hole in controlled zone. Sprayer or injector when actuated may perform suction from controlled zone by spraying liquid at high reduced pressure to form small droplets similar to fog for suction of smoke from controlled zone. EFFECT: higher efficiency. 13 cl, 27 dwg
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