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  2. N95 respirator - Wikipedia

    en.wikipedia.org/wiki/N95_respirator

    An N95 respirator is a disposable filtering facepiece respirator or reusable elastomeric respirator filter that meets the U.S. National Institute for Occupational Safety and Health (NIOSH) N95 standard of air filtration, filtering at least 95% of airborne particles that have a mass median aerodynamic diameter of 0.3 micrometers under 42 CFR 84, effective July 10, 1995.

  3. Disposable masks can take up to 450 years to decompose ... - AOL

    www.aol.com/lifestyle/disposable-masks-450-years...

    And that means many people will still be advised to keep wearing — or choose to keep wearing — masks and, in many cases, “the most protective,” which, according to the CDC, include the N95 ...

  4. NIOSH air filtration rating - Wikipedia

    en.wikipedia.org/wiki/NIOSH_air_filtration_rating

    During the COVID-19 pandemic, the mask and respirator market rapidly grew, along with counterfeit respirators. [1] NIOSH, on behalf of the Department of Health and Human Services, filed a trademark application on June 17, 2020, for various 42 CFR 84 trademarks, including the N95, allowing NIOSH to enforce rules on counterfeit masks outside of rules defined in 42 CFR 84.

  5. Project N95 - Wikipedia

    en.wikipedia.org/wiki/Project_N95

    Project N95 is a nonprofit organization which runs a website devoted to the sale of N95 masks and COVID-19 tests. [1] The website functions as a PPE clearinghouse, connecting buyers directly to manufacturers. [2] It was founded by Anne Miller. Her mother-in-law was among the first residents of the state of Vermont to die of COVID-19. [3]

  6. Omaha, Nebraska - Wikipedia

    en.wikipedia.org/wiki/Omaha,_Nebraska

    Omaha (/ ˈ oʊ m ə h ɑː / OH-mə-hah) is the most populous city in the U.S. state of Nebraska and the county seat of Douglas County. [6] It is located in the Midwestern United States along the Missouri River, about 10 mi (15 km) north of the mouth of the Platte River.

  7. Plague doctor costume - Wikipedia

    en.wikipedia.org/wiki/Plague_doctor_costume

    The exact origins of the costume are unclear, as most depictions come from satirical writings and political cartoons. [18] An early reference to plague doctors wearing masks is in 1373 when Johannes Jacobi recommends their use but he offers no physical description of what these masks looked like. [19]