Expert says virus transmits easier in schools with inadequate HVAC systems

AUSTIN, Texas (KEYE) — As school districts prepare for in-person learning this fall, experts warn mask wearing and social distancing may not be enough to protect students and staff from COVID-19.

“We really need to pay attention to how we are improving indoor air quality in schools so that we have an adequate strategy for returning to school safely,” says Serene Al-Momen, CEO of Senseware.

Senseware is a company that works with school districts to monitor air quality and detect virus particles in the air.

Al-Momen says it’s critical for schools to monitor their HVAC systems and find ways to ventilate and filtrate air throughout buildings.

According to a visualization from the University of Oregon, virus particles can recirculate in the air through a building’s HVAC system.

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When outside air is let in, those particles exhaust faster.

“What we know about the virus is airborne is the primary mode of transmission,” says Al-Momen.

The CDC recommends schools open windows, doors and use fans to reduce transmission—unless it poses a safety risk.

Austin ISD’s teacher union Education Austin has urged the district to assess their HVAC systems.

CBS Austin reached out to AISD Friday but did not hear back by deadline.

“Figuring out strategically what you need to change would be a very good first step,” says Al-Momen.

According to Serene Al-Momen, schools should increase ventilation by bringing more outside air inside schools, improve filtration so virus particles are trapped and not recirculated and regularly monitor HVAC systems and air quality.