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According to ASTM F 1862, surgical masks are tested on a pass/fail basis at three velocities corresponding to the range of human blood pressure (80, 120, 160 mm Hg).

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3M provides a full line of reusable respirators to meet the needs of any work environment. Half or full facepiece reusable respirators help protect against both particles and/or gases and vapors. 3M now proudly offers Scott Safety Reusable Respirators. View Scott Safety Respiratory Products. Other Worker Health & Safety Resources. All PPE Products.

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Wearing a cloth mask with standard fabrics will potentially minimize viral load inhaled by only 10 percent total, compared to minimizing the viral load by 95 percent when using a N95. While on the job, wearing a homemade mask is potentially more dangerous than just trying to remain at least 6 feet from any potentially contagious people.

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used in the United States since the national strategy to begin infant vaccination began in 1991, the CDC estimates that as many as 2.2 million Americans have the virus. About 19,200 new cases in the United States were estimated for 2014. 3,4. While this represents an 82% reduction in new cases since the vaccine program began, the CDC cautions

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