Can a simple fan and water spray beat the heat? a study investigates

NCT ID NCT06593067

Completed Knowledge-focused Sponsor: University of Texas Southwestern Medical Center Source: ClinicalTrials.gov ↗

First seen Aug 14, 2026 · Last updated Aug 14, 2026

Summary

This study tests how different cooling methods—an electric fan, water spray, both, or neither—affect skin temperature during a short bout of heat exposure. Healthy adults will sit in a heated room (41°C, 15% humidity) for 15 minutes while small sensors measure temperature on the skin surface and just beneath it. The goal is to see which cooling approach best lowers skin temperature, which could help guide ways to stay safe in hot environments.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: Cooling modalities: electric fan, water spray, or both, compared with no cooling during heat exposure
What this could lead to: If effective, this could inform better cooling strategies to prevent heat-related illness during heatwaves.
What could go wrong: This is a small, early-stage study measuring skin temperature only, not overall body cooling or health outcomes. Results may not apply to real-world heat stress conditions.

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Conditions

The condition(s) this trial relates to.

Hyperthermia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

HYPERTHERMIA

Contacts and locations

Locations

Institute for Exercise and Environmental Medicine

Dallas, Texas, 75231, United States

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