N-95 masks: how much do we know?

N95 masks are usually made of four layers of melt-blown nonwoven polypropylene fabric treated to sustain an electrostatic charge. [...]in addition to creating a mechanical barrier against aerosols, the filters retain charged particles, such as bacteria. The most important thing in using the masks is...

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Bibliographic Details
Published in:The Egyptian journal of internal medicine 2020, Vol.32 (1), p.13-2, Article 13
Main Authors: Bakshi, Satvinder Singh, Bakshi, Sumita
Format: Article
Language:English
Subjects:
Coronaviruses
COVID-19
Intensive care
Internal Medicine
Letter to the Editor
Masks
Medicine
Medicine & Public Health
Occupational safety
Personal protective equipment
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Summary:N95 masks are usually made of four layers of melt-blown nonwoven polypropylene fabric treated to sustain an electrostatic charge. [...]in addition to creating a mechanical barrier against aerosols, the filters retain charged particles, such as bacteria. The most important thing in using the masks is that a “fit test” should be done in the beginning to check for the fit of the mask by using masks of different sizes. Besides every time while donning the mask a “user seal check” with either positive or negative pressure should be performed [3, 4]. Availability of data and materials Not applicable Ethics approval and consent to participate Not applicable Consent for publication Not applicable Competing interests None declared AbbreviationsCOVID-19 Corona virus 2019PPE Personal protection equipmentNIOSH National Institute for Occupational Safety and Health Publisher’s Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
ISSN:1110-7782
2090-9098
DOI:10.1186/s43162-020-00014-z