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PSA: Your Homemade Face Mask Should Have 3 Layers – Lifehacker Australia

From socks to old shirts, anything can be turned into a homemade reusable mask. But new research shows that using more layers is crucial for effectiveness.

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With face masks becoming mandatory for some in Victoria, people have jumped to make their own, with many using any material at their disposal. From socks to old shirts, almost anything can be turned into a reusable mask. New research shows, however, that using more layers at least three is crucial for a mask to be effective.
A new study from researchers at the University of New South Wales (UNSW) has shown homemade masks should have three layers, but even two layers would be a major improvement…

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