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Scientists call on WHO to provide guidance on indoor humidity

Scientists, including experts coming from Harvard and Yale, have designed a petition calling on the World Health Organization to provide guidance on indoor air quality within the battle against coronavirus.

“As COVID-19 continues to put pressure on health systems and the economy globally, the group calls on the WHO to review the extensive research that shows an indoor humidity level of between the 40% – 60% relative humidity (RH), is the optimum threshold for inhibiting the spread of respiratory viruses such as influenza,” they said in a record obtained by Fox News. “This is a threshold that many public buildings drop below every winter.”

Relative humidity measures water watery vapor relative to the temperature associated with the air.

The analysts want the WHO to present clear guidelines on the bottom levels of relative humidity for general public buildings.

“Ninety percent of our lives in the developed world are spent indoors in close proximity to each other. When cold outdoor air with little moisture is heated indoors, the air’s relative humidity drops to about 20%. This dry air provides a clear pathway for airborne viruses, such as COVID-19,” said Prof. Dr. Akiko Iwasaki Ph. Deb., of Yale, in the record. “That’s why I recommend humidifiers during the winter, and why I feel the world would be a healthier place if all our public buildings kept their indoor air at 40 to 60% RH.”

“In light of the COVID-19 crisis, it is now more important than ever to listen to the evidence that shows optimum humidity can improve our indoor air quality and respiratory health. It is time for regulators to place management of the built environment at the very center of disease control,” added Dr. Stephanie Taylor, infection control consultant from Harvard Medical School and ASHRAE distinguished lecturer, in the record. “Introducing WHO guidelines on minimum lower limits of relative humidity for public buildings has the potential to set a new standard for indoor air and improve the lives and health of millions of people.”

Fox News has attained out to the WHO together with a request for comment on this story.

In a good recent study, researchers at Yale explained that indoor humidity might slow the spread of coronavirus.

Relative humidity should certainly not be confused with absolute humidity. Relative humidity “is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature,” explains the National Weather Service on its website.

This differs from absolute humidity, which is a measure associated with the actual amount of normal water vapor in the air, irregardless of its temperature.

As of Monday morning, more when compared with 3. 53 million coronavirus situations have been diagnosed worldwide, at the very least 1, 161, 804 of which in turn happen to be in the U. S. The disorder has accounted for at the very least 248, 164 deaths around often the world, including at least 67, 886 people in the YOU.


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