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Study shows efficacy of cloth masks ranging from 19% to 82%

Ljubljana, 13 November - Since the first wave of the epidemic, the Jožef Stefan Institute (IJS) has tested the efficacy of over 150 protective face masks and their materials. Studies have shown that the efficacy of washable masks, which can be made at home and re-used, ranges from 19% to 82%.

Ljubljana
Cloth masks.
Photo: STA

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