No fan: why ceiling fans can make heat stress worse – realestate.com.au

New research has shown that the modest ceiling fan could really make heat stress worse.

Griffith University in Queensland has revealed that ceiling fans, sometimes popularly known as the Blowie or the Esky fan, does not do enough to fully improve heat-induced physiological voltage for vulnerable populations as soon as the mercury exceeds 31 degrees.

The research that has been drawn up to evaluate whether ceiling fans decreased the body temperature of the core and physiological tension in older adults exposed to long -term interior heating of 31 degrees and 45 percent relative humidity.

Ceiling fans must be used in addition to an air conditioner, the research found

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Dr. Fergus O’Connor from Griffith’s School of Allied Health, Sport and Social Work said that the use of ceiling fan considerably reduced the peak temperature by 0.2 ° C, heart rate with five beats per minute and thermal discomfort, but heat -induced tribe was not fully limited.

“In environmental conditions of 31 degrees and 45 percent relative humidity, ceiling fans were not fully effective and the heat-induced physiological voltage did not fully improve,” Dr. O’Connor.

“Under the tested environmental conditions, the core temperatures were raised by almost 1 degrees and the heart rate was increased by 22 beats per minute, even with the use of a fan.

“That is why, although ceiling fans offer some advantages, they are not as completely effective as a self -contained cooling mechanism and they must be combined with air conditioning where possible.”

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Only ceiling fans turned out not to be so efficient when the temperature above 31 degrees and 45 percent relative humidity climbed (photo by Damien Meyer / AFP)

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According to the Bureau of Meteorology, the hottest temperature ever in Australia was 50.7 degrees, which was registered in West -Australia (Onslow Airport, 2022) and South Australia (Oodnadatta Airport, 1960).

It was followed by 50.1 degrees at the post office of Wilcannia in NSW in 1939, 49.5 degrees at the police station of Birdsville in Queensland in 1972, 48.8 degrees on Hopetoun Airport in Victoria in 2009, 48.3 Degrees in the Northern site in the Northern site in the Northern site in the Northern site in the Northern site.

The study advised that ceilings fans were used best early during the exposure to heat and when the ambient temperatures are less than 33 degrees.

Setting an air conditioner at around 26 degrees, in combination with a ceiling fan, was an ideal option to minimize electrical consumption and prevent the negative health effects of heat exposure.

In addition, fans can exacerbate the heat voltage when the temperature exceeds more than 40 degrees, and a common cooling intervention can make your house more like a convection than a cool oasis.

People can experience fatigue, dizziness, reduced cognitive function and persists as exposure, heat -related diseases.

Dr. O’Connor said that if climate change is more frequent and intense heat waves, and overheating indoors will become more ordinary, sustainable and accessible cooling interventions, such as ceiling fans, a crucial role in protecting people’s health, especially for older adults.

“However, recommendations for the supervision of public health must be steeped in interventions that are effective, and not just interventions that will probably not cause any damage,” he said.

The effects of the paper of ceiling fans at core temperature in stuck older adults that were exposed to overheating indoor ‘were published in the Journal of the American Geriatrics Society.