"The White House on Thursday released new ventilation and air quality guidelines for schools, colleges and other building owners and operators in an effort to reduce the risk of Covid-19 spreading indoors. "

>"Parents are sneaking carbon dioxide monitors into their children’s schools to determine whether the buildings are safe."

By the way, the windows stayed open even in the dead of winter because air! One historian told me stories of patients closing windows, nursing opening them, and then _...Read More_