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Extremely hot summer is expected this year, so if students wear masks, air conditioning is inevitable. Officials advised to refrain from using it because they are concerned that COVID19 can spread in a closed classroom. “The school's air conditioning dilemma. What about the risk of infection?” [Source: Dong-A Ilbo, 5/6] https://www.donga.com/news/Society/article/all/20200506/100926403/1 등교개학 ‘찜통..

Antimicrobial copperViruses spread through air conditioning A. On May 27th, the Korean Government announced guidelines for air conditioners to prevent the spread of new coronavirus infections. The government advises to be careful with operation of air conditioners, because the indoor air will be recirculated when air conditioners are used, and droplets may spread further due to air movement. “Wh..