Debate Over Fan Use During Heat Waves Sparks Confusion Among Health Agencies

As extreme heat waves become more common, the effectiveness of electric fans for cooling has sparked debate among health organizations. The CDC recommends against fan use above 32.2°C (90°F), while the WHO suggests a higher limit of 40°C (104°F). Recent studies reveal conflicting evidence on the benefits of fans in hot conditions, especially for vulnerable populations. Understanding these guidelines is crucial for managing heat stress effectively.