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. 2021 Jul 14;477(2251):20210062. doi: 10.1098/rspa.2021.0062

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© 2021 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 8. — (a) Charge in nano-coulombs (nC) measured on N95 FRs under different conditions: bare N95 electrocharged layer (type A), new commercial N95 FR (type B), new, discharged and then recharged N95 FR (type C), and a used, decontaminated and recharged N95 FR (type D).(b) Charge as a function of time for new N95 (black solid circles), recharged N95 (solid blue squares), newly charged SM (red solid diamonds), polypropylene (upright solid green triangles) and polystyrene (inverted solid purple triangles) fabrics produced in-house exhibit steady charge readings over a 12 h duration. Data for this figure are available at [56]. (Online version in colour.)