The ability of the nanofibers to act as a barrier for small particles is only due to their ability to catch the small particles.

Which specific characteristic of the nano-based PPE provides thermal and moisture comfort during wearing?

Face masks N95 and FFP2 provide protection against particles smaller than 100 nm.

Which of the following is not among the specific recommendations of WHO, published in Interim guidance, 2020?

The greater nanofiber surface area is, the greater capturing and protective ability of the nanofiber layer will be.

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