Understanding the difference between surgical masks and N95 respirators
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NIOSH infographic for the difference between surgical masks and N95 face pieces
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Public domain
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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.
Mer information om licensen för bilden finns här. Senaste uppdateringen: Tue, 23 Jan 2024 22:21:30 GMT