Potential risks of a widespread use of 3D printing for the manufacturing of face masks during the severe acute respiratory syndrome coronavirus 2 pandemic

J 3D Print Med · PMC7707523

Europe PMC

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may be significantno p-value reported

The risk resulting from usage may be significant as the protective effect of the mask designs we have looked at is poor.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.