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Can electric fans cool down when the temperature exceeds body temperature?

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Can electric fans cool down when the temperature exceeds body temperature?

Date of release:2019-08-12 Author: Click:

With the heat wave occurring everywhere, many European cities have introduced various ways to cope with high temperatures, including advocating that people go to air-conditioned public facilities or distribute bottled water, but one that sounds interesting: Do not use fans when the temperature exceeds 90 degrees Fahrenheit (32 degrees Celsius).

Let's hear the top feeling of this proposition is, yes, 32 degrees above the power fan where it still works, air conditioning ah! ____________ But in fact, it is cruel to the European people, the price of air conditioning and installation is too expensive, or because of various constraints do not allow safe air conditioning... Overall, according to the World Energy Agency, less than 5% of households in Europe have air conditioning. As a result, electric fans have become their high-temperature life-renewal artifacts. A cross-border retail channel in China shows that in May this year, the sales of electric fans on the channel exceeded 100% compared with the increase in April, while the increase in June was as high as 200%. On buses and metros without air conditioning, a small electric fan without plugging in admires others.

Can electric fans cool down when the temperature exceeds body temperature?

Can't use air-conditioning, let's not use fans, it's not like "calm mind natural cool"? It sounds ridiculous, but the advocacy of the leading public health agencies, including the CDC, the World Health Organization and the Environmental Protection Agency, advocates that electric fans should not be used in extremely hot environments. The proposal points out that when the temperature reaches above 37 degrees, the electric fan will add pressure to the body to dissipate heat, which should not be used.

Ollie Jay, an associate professor of thermoregulation physiology at the University of Sydney, Australia, objected: "There is no evidence to support the idea of not blowing fans. And our research can provide scientific evidence that brand electric fans can also cool down in extremely hot conditions, which is very safe for the body.

Jay recruited 12 healthy adult males to test their tolerance to high temperatures in a two-hour high-temperature environment using and without fans. Measurements include their heart rate, central body temperature, blood pressure, and the rate of dehydration under high dry-hot and humid-hot conditions.

The results show that under high temperature and dry conditions, the use of electric fans results in worse measurement results for each type. However, under high temperature and humidity conditions, except for sweating rate, electric fans improve all results, and the use of electric fans does not lead to elevated blood pressure.

Can electric fans cool down when the temperature exceeds body temperature?


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    Contact person: Mr. Li   /  Ms. Zhang

    Contact information: 0757-26662385 0757-66882333

    Foreign trade: 0757-66882137

    Fax: 0757-66882134

    E-mail: sales@junte.com.cn

    Address: No. 6, No. 5 Road, Gaocun Industrial Zone, Beijiao Town, Shunde District, Foshan City

    Website: http://en.junte.com.cn/

     


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