Experts: Improving ventilation helps stop the spread of Corona in schools

Ventilation experts in the United States of America said that the US Centers for Disease Control and Prevention (CDC) should do more to guide and encourage better air circulation in buildings, especially in schools, to help prevent the spread of the Corona virus.

According to the American "CNN" site, experts said that the CDC has not paid enough attention to the role that ventilation can play in helping the spread of the Corona virus - or reducing it.

Schools will need to spend time and money to improve airflow by using HVAC or stand-alone HEPA air filtration systems or even by opening windows if students, teachers and staff are to safely return to learning inside the school in the fall, experts say.

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"The state of ventilation in schools in the United States at the moment is totally inadequate," said Richard Corsy, dean of the College of Engineering and Computer Science at Portland State University, at a forum hosted by the Johns Hopkins Center for Health Security in Bloomberg.

"Right now, schools are looking to the Centers for Disease Control and Prevention and not getting answers for the kinds of things we're talking about," Corsi added.

Corsi said he advised schools that they should improve ventilation, their response was that there were no specific guidelines on the CDC website, and the CDC suggested that schools should consider ventilation improvements.

"Take into account upgrades or improvements to the ventilation system and other steps to increase the delivery of clean air and mitigate potential pollutants in the school," he added. "With poor ventilation, viral particles can accumulate in the air in the classroom or cafeteria."

Why is ventilation important in schools?

People cough, sneeze, or simply breathe particles constantly. If a person is infected with a virus, including the Coronavirus, viral particles can be transmitted on droplets that can become suspended in the air in a closed room. These particles accumulate and others inhale them.

The solution can also be simple air exchange, replace the particulate-laden air with fresh and clean air, and the risk of cross infection will be reduced.