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Disposable facemasks can be reused after being heat-treated, a study by University of Tartu researchers shows. Researchers at the Institute of Physics have conducted experiments with medical face masks made by five manufacturers, trying to destroy the virus using three methods: machine washing at 60 degrees, keeping the mask in boiling water for five minutes and keeping the mask in hot water for five minutes. Each method was applied 10 times, and the masks were allowed to dry for 24 hours between each heat treatment. After 10 times, the masks' filtration efficiency and breathability were meas...

Estonian researchers prove disposable medical face masks can be reused after heat treatment By 51shares Disposable face masks are a major cause of the large environmental footprint in the novel coronavirus crisis; a study by the Estonian University of Tartu researchers showed that these masks can, in fact, be repeatedly heat-treated before their efficiency starts to significantly decrease. For the study, the researchers at the University of Tartu Institute of Physics conducted experiments with medical face masks of five manufacturers, trying to destroy the virus using three methods: machi...