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Testing face masks Lab tests reveal the safest and most effective Marketplace

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Добавлено by Admin В Как приготовить маску для лица
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How effective are your face masks? Months into the coronavirus pandemic there are still no standards or regulations for consumer masks. So we asked the University of Toronto to test more than 20 different masks. We reveal which are the most effective at keeping you safe from COVID-19, and which masks you should avoid.

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