HEPA filters in classrooms:
"HEPA filters... predicted to reduce PM2.5 by 40–60 % and viral RNA by 30–50 % depending on... classroom design and window opening... The energy cost of... HEPA filters is likely to be only 1 %–2 % of the classroom heating costs. "
www.sciencedirect.com/science/arti...
Coupled indoor air quality and dynamic thermal modelling to assess the potential impacts of standalone HEPA filter units in classrooms
The quality of the classroom environment, including ventilation, air quality and thermal conditions, has an important impact on children’s health and …
HEPA filters in classrooms: "HEPA filters... predicted to reduce PM2.5 by 40–60 % and viral RNA by 30–50 % depending on... classroom design and window opening... The energy cost of... HEPA filters is likely to be only 1 %–2 % of the classroom heating costs. " www.sciencedirect.com/science/arti...