Purifiers alone not enough to cut viral exposure in classrooms
Installing HEPA air purifiers in classrooms may not significantly reduce students’ exposure to respiratory viruses, according to new research in America.
Evidence that air cleaners stop germs is still lacking
A new scientific review has found that many of the air-cleaning and ventilation technologies being used to stop the spread of diseases like COVID-19 and flu have not been clearly proven to protect people in real life.