No masking facts on homemade covering

Published date22 December 2020
Date22 December 2020
Publication titleEvening Chronicle
Sorry to disappoint the nonscientific community with such a scientific fact (Lack of masks shows we have a problem, Feedback, December 21), but facts are facts.

However, what is worse is some even believe wearing any common or garden, homemade "face covering" is anything other than selfindulgent. Even if a face mask was medically authenticated, such as the FFP3 face mask, this is only credited at offering 99% filtering efficiency on the day...

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