⟳ Репост от Dr Noor Bari
“The biggest problem is that the conclusion doesn't match the data.” Allen said. “If you look strictly at the data, the conclusion is a small HEPA filter that's turned off doesn't work.” www.cidrap.umn.edu/covid-19/can...
Can air purifiers prevent flu and COVID-19 in nursing homes? Only if they’re used properlywww.cidrap.umn.edu