How do water mist systems work?
Refer to the diagram below.

Cooling
The most important property of water as a suppressant is its cooling capacity: in vaporization water can absorb energy over 2 MJ/kg which is superior to any other realistically conceivable suppressant.

Oxygen Depletion (Inerting)
The vaporization also locally inerts the atmosphere: the volume of water expands to over 1700 times of the original volume in vaporization.

Radiant Heat Blocking
The third principal suppression mechanism is independent of vaporization: a mist of small droplets effectively blocks radiative heat.

Forafac® WM technical information

• Forafac® WM
• Toxicological Study of Forafac® WM contained in breathable droplets

Droplet Size
Forafac® WM does not alter the particle size compared to to a system using water only.

Faster Extinction
Forafac WM generates a foam blanket which stops vapour emission in addition to oxygen depletion. Forafac WM announces the penettration of water droplets into the flams.

Burnback Resistance
If a pool fire is extinguished only with water mist, re-ignition can occur at anytime. This is not the case if water contains a fluorinated surfactant based formulation.