The smoke is used to demonstrate how the air rises from the heat of our own bodies. Photo: Mikko Raskinen / Aalto UniversityRisto Kosonen at Aalto University reports hand hygiene and coughing into sleeves are not sufficient measures against viruses such as the coronavirus, which are spread by aerosol particles suspended in the air.For this…
Viruses in the air? Researchers study how air cleaning devices, masks, and UV light reduce risk of infection
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