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Coronavirus in schools: Air purifiers alone are not enough – room ventilation is still key | Umweltbundesamt
SWR, 18 June 2020 - https://www.swr.de/swraktuell/rheinland-pfalz/kultusministerkonferenz-hubig- corona-hygiene-regelbetrieb-sc
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Berlin, Germany. 20th Nov, 2020. A sign with the inscription "Corona Stufenplan für Berliner Schulen!" hangs on a door in the primary school in the Köllnische Heide. The mark is on "red".
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Hygiene concept: The school yard of the Marie-Pettenbeck-Schule is divided into ten areas - The Limited Times
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Clean Talk – Der Hygienepodcast mit Dorfners Hygiene-Experten Erhard Hirschmann Folge 2: Hygiene in Schulen - Dorfner Gruppe
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Gesundheitserziehung und Hygiene im Kindergarten, in Schule und Unterricht (German Edition): Lutz-Dettinger, Ursula: 9783506753014: Amazon.com: Books
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