Are HEWER MultiICY cooling towels useful in heat stress management?
In industrial safety and heat stress
management, cooling towels are considered a highly effective supplementary tool.
According to guidelines from OSHA and NIOSH, their utility is categorized into
two main areas: active cooling during work and rehabilitation during rest
breaks.
1. Effectiveness in Heat Stress Mitigation
HEWER MultiICY cooling towels work via evaporative
cooling. When the moisture in the towel evaporates, it draws heat away from the
skin, which can lower the surface temperature of the skin significantly.
Perceptual Relief: One of their greatest
strengths is improving "thermal sensation." They make a worker feel
cooler almost instantly, which can reduce psychological stress and improve
focus during strenuous tasks.
Core Temperature: While effective at
lowering skin temperature, research is mixed on how much they actually lower
core body temperature. In extreme heat, they are often used alongside other
methods (like hydration and shade) to ensure internal temperatures stay within
safe limits.
2. The Humidity Limitation
The effectiveness of a cooling towel is
heavily dependent on the environment:
Dry Heat: In low-humidity environments,
evaporation happens quickly, making the towel feel much colder.
High Humidity: If the air is already
saturated with moisture (high humidity), the water in the towel cannot
evaporate effectively. In these cases, the towel may eventually act as an
insulator, trapping body heat against the skin instead of removing it.
3. Usage in "Rehab" (Rest Breaks)
NIOSH recommends using cool, wet towels
during scheduled rest breaks to accelerate recovery.
Strategic Placement: For maximum impact on
core temperature, towels should be applied to areas with high blood flow near
the surface, such as the neck, armpits, or groin.
PPE Integration: If workers are wearing
heavy PPE (like arc-rated suits or chemical coveralls), towels are most
effective when applied immediately after the PPE is removed during a break to
"flush" the heat out of the body.
HEWER offers MultiICY cooling towels which
help people to reduce heat stress, stay comfortable, or improve performance in
hot environments.