Cold Water Immersion in Fire Departments: Operational Barriers

The evidence for cold water immersion in exertional heat stroke is not in dispute among fire service medical directors. What holds departments back is rarely the science: it is a set of practical, operational barriers that keep immersion equipment off the truck.

Storage space on the apparatus

Traditional rigid cooling tubs are bulky, and apparatus compartment space is already contested by extrication tools, medical bags, and hose. A cooling solution that cannot fit realistic storage without displacing other equipment gets left at the station rather than carried on every call.

Deployment speed under real conditions

A tub that requires two people, a water source with pressure, or several minutes of setup does not match the pace of an actual incident. Crews default to what they know works fast: ice packs and wet towels, even knowing these cool at roughly a tenth of the rate of immersion.

Water supply in the field

Departments frequently assume immersion requires a hydrant or tanker supply nearby, which is not always the case on a wildland urban interface fire or a rural response. Equipment that can be filled from any available water source, including buckets or a nearby stream, removes this constraint.

Training turnover

Volunteer and part-time departments face constant personnel turnover, and equipment that takes multiple training sessions to master falls out of use as trained members rotate off shift. Simplicity of deployment is not a convenience feature here, it is what determines whether the equipment gets used at all.

Solving the barriers, not just the cooling rate

The Kollder emergency cooling tub was built against these specific constraints: solo deployment in under 2 minutes with no tools, a compact folded footprint in the Kollder Go bag, and a stainless steel chassis built for repeated field use. Details at kollder.com/#contact.