Since 2005, Japan's Ministry of Environment has proposed that setting the air conditioner at 28℃ in summer is not only comfortable, but also energy saving and emission reduction. So the air conditioning temperature in most offices is fixed at 28℃. However, some scientific studies have pointed out that air conditioning at 28℃ can save energy and reduce emissions, but it makes people feel uncomfortable, because about 25℃ is a comfortable temperature for human beings.
As early as 2007, the General Office of the State Council issued the Notice on Strict Enforcement of Air Conditioning Temperature Control Standards in Public Buildings, requiring all units in public buildings, including state organs, social organizations, enterprises and individual industrial and commercial households, to set the indoor air conditioning temperature at no less than 26 degrees Celsius in summer.
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There is another factor that has to be considered, and it is also the most likely factor to cause tension between colleagues and family conflicts, that is, the difference between men and women. A study published in Natural Climate Change by researchers at Maastricht University in the Netherlands shows that men like temperatures around 22℃, but women are more adapted to temperatures of 25℃ or above. The reason is that there are differences between men and women in body shape and fat-muscle ratio.
Fat cells produce less energy than muscle cells. On average, men have lower fat-muscle, that is, more muscles, while women have higher fat-muscle, that is, more fat. In addition, women are petite, have a small heat dissipation area on the body surface, and their resting metabolic rate is much lower than that of men, so at the same temperature, women will feel colder than men.
Today, with more and more emphasis on gender equality, the temperature of indoor air conditioning should also take into account both sexes, take the median value, and even tilt towards women. In addition, considering the national requirements for energy conservation and emission reduction, it is a good choice to set the air conditioning temperature at 26℃ in summer.
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