Massive attack (sweeping) - A technique similar to the one described above (feeding a fog stream into the zone of fire gases), but consisting in a slightly longer opening of the nozzle (about 2-4 seconds) and feeding with a sweeping motion with high water efficiency (400 l / min).

A combination of direct and indirect attack. The water stream cools the combustible material and the smoke, and at the same time the generated steam absorbs heat from the entire fire environment.

In some countries this method is called TOZ because of the shape of the letters "drawn by the flow of water".

https://vimeo.com/474623439/744d4fe81e

This video was made during training with real fire. Room was fastly extinguished with small amount of water. Using fog stream causes steam production so firefighters stays outside the window.

6.6.2. Massive attack