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2021
April
Neat News 2021-95 (added 2021-04-05)
Ventilation against Covid-19
Public Domain by Jorge Barrios
| In closed rooms with many people - such as classrooms in schools - ventilation and masks are an important means to reduce the infection risk for Covid-19. A ventilation system in combination with a good air filter can reduce the infection risk by 40 to 50 percent. related: #Covid-19 #infection_risk |