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This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain
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Image title: COVID-19 Vaccination Record Card: Author: CDC/NCIRD: Software used: Adobe InDesign CC 13.0 (Windows) Conversion program: Adobe PDF Library 15.0: Encrypted: no: Page size: 348 x 294 pts: Version of PDF format: 1.4
A surgical mask serves as a mechanical barrier that interferes with direct airflow in and out of respiratory orifices (i.e. nose and mouth).Most commonly used surgical masks are designed to only trap respiratory droplets, and therefore do not filter or block fine airborne particles that are smaller than the designed filtration ratings, which may be transmitted by coughs, sneezes, unintentional ...
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This full-face mask also protects the eyes, and has an inner orinasal mask to reduce dead space. Pink hard-case P100 particulate filter cartridges make their presence or absence conspicuous at a distance. Elastomeric respirators are examples of air-filtering respirators, in contrast to air-supplying respirators.
Open Artwork System Interchange Standard (OASIS [3]) is a binary file format used for specification of data structures for photomask production. [4] It's used to represent a pattern an interchange and encapsulation format for hierarchical integrated circuit mask layout information produced during integrated circuit design that is further used for manufacturing of a photomask.
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