Electric fan use for cooling during hot weather: a biophysical modelling study

Author: Nathan Morris, Georgia Chaseling, Timothy English, Fabian Gruss, Mohammad Fauzan Bin Maideen, Anthony Capon, Ollie Jay

Year: 2021

Published in: The Lancet Planetary Health

In hot weather, electric fans can potentially provide effective cooling for people, with lower greenhouse gas emissions and cost than air conditioning. However, international public health organisations regularly discourage fan use in temperatures higher than 35°C, despite little evidence. This study aimed to determine humidity-dependent temperature thresholds at which electric fans would become detrimental in different age groups.