DIPHASIC Firefighting System: 98% Less Heat Exposure
LEADER Group has announced a new firefighting technology called the DIPHASIC firefighting system which provides up to 98% protection against radiant heat flux during fireground interventions.
Up to 98% less heat exposure marks a new breakthrough in firefighting. But what does DIPHASIC technology really change on the fireground?
DIPHASIC firefighting system improves firefighter safety and efficiency
The DIPHASIC mist helps:
- significantly reduce thermal and toxic exposure
- stabilize fire behavior (flashover, backdraft)
- improve crew safety during advancement
- rapid cooling of smoke and hot gases
- ability to reach the fire without direct line of sight
- improved visibility within compartments
Measurements conducted under controlled conditions show up to 98% protection against radiant heat flux
In practical terms: less exposure, more control.
A different approach to firefighting
The DIPHASIC system is based on an air/water mix that generates a mist composed of over 1.5 billion micro-droplets per liter, projected at very high speed.
Unlike a conventional straight stream, this mist:
- spreads throughout the volume
- flows around obstacles
- acts directly on hot gases
The objective is no longer to increase flow rate, but to maximize the effectiveness of every liter used.
- easier progression in confined environments due to the weight of the hoses
Water management: a growing operational challenge
Confined fires, limited water supply, zero visibility conditions — operational environments are becoming increasingly complex.
Managing limited water resources
- The system allows crews to operate with significantly lower flow rates.
- In some configurations, water usage can be reduced by 4 to 6 times, while maintaining operational effectiveness
Property Conservation: Reducing Collateral Damage
- Prevents Ceiling Collapse : water weight loading on compromised structural components
- Minimizes Flooding : Less water runoff damage in multi-family and commercial structures
- Lowers Restoration Costs : Decreased overhaul damage and faster property recovery
- Community Impact : Reduced displacement duration and insurance loss metrics
The system also allows crews to operate with significantly lower flow rates.
- In some configurations, water usage can be reduced by 4 to 6 times, while maintaining operational effectiveness
Where it makes the biggest difference
The system shows strong relevance in specific scenarios:
- structural fires
- confined environments
- underground parking fires
- remote areas with limited water supply
- navy and airport-related activities
In these conditions, the mist’s ability to move through volumes and rapidly cool smoke is a major operational advantage
A technology developed by and with firefighters
The DIPHASIC system was developed through close collaboration with the Paris Fire Brigade and several fire departments, combining real-scale testing and scientific validation
Operational deployment has been ongoing since 2023.
A complementary tool — not a replacement
“DIPHASIC system does not replace existing firefighting techniques — it adds another tool, suited to specific operational situations.”
- Additional Tool : Another option in your tactical arsenal for specific fire conditions
- Complementary Tactic : Works alongside existing equipment and proven methods
- Crew Decision Flexibility : Gives firefighters more choices based on fire behavior and conditions
Departments trust honesty – we’re adding capability, not replacing proven tools
Towards a shift in firefighting strategies?
The growing interest in this type of technology raises a broader question:
Should we continue increasing flow rates…
or use water more efficiently?
A debate that is now emerging within the fire service community.
For more information please visit Leader website.
