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  2. Executive Order 13991 - Wikipedia

    en.wikipedia.org/wiki/Executive_order_13991

    Executive Order 13991, officially titled Protecting the Federal Workforce and Requiring Mask-Wearing (and also referred to as the 100 Day Masking Challenge), is an executive order signed by U.S. President Joe Biden on January 20, 2021. [1]

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  4. M50 Joint Service General Purpose Mask - Wikipedia

    en.wikipedia.org/wiki/M50_joint_service_general...

    The M50 series mask entered service in December 2006. [3] [4] In July 2014, Avon Protection received a contract to supply 135,000 M50s for $33 million. [5]In March 2016, it was announced that 166,623 M50s were purchased by the Department of Defense (DOD) under a $42 million contract.

  5. High altitude breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/High_altitude_breathing...

    The cockpit crew are typically supplied from compressed oxygen cylinders. The oxidizer core is sodium chlorate (Na Cl O 3), which is mixed with less than 5 percent barium peroxide (Ba O 2) and less than 1 percent potassium perchlorate (K Cl O 4). The explosives in the percussion cap are a lead styphnate and tetrazene explosive mixture. The ...

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

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

    According to recent independent lab tests commissioned by TheNew York Times, two masks in particular — Enro ($16.50 each) and Happy Masks Pro ($24 a pop) blocked “94 percent to 99 percent of ...

  7. Personnel Armor System for Ground Troops - Wikipedia

    en.wikipedia.org/wiki/Personnel_Armor_System_for...

    Personnel Armor System for Ground Troops (PASGT, pronounced / ˈ p æ z ɡ ə t / PAZ-gət) is a combat helmet and ballistic vest that was used by the United States military from the early 1980s until the early or mid-2000s, when the helmet and vest were succeeded by the Lightweight Helmet (LWH), Modular Integrated Communications Helmet (MICH), and Interceptor body armor (IBA) respectively.

  8. Kylian Mbappé says playing with a mask is ‘horrible.’ Why is ...

    www.aol.com/kylian-mbapp-says-playing-mask...

    As France gets ready to face Belgium in the Euro 2024 round of 16 on Monday, star man Kylian Mbappé is still struggling to get used to the protective equipment he has to wear.

  9. Respirator assigned protection factors - Wikipedia

    en.wikipedia.org/wiki/Respirator_Assigned...

    Example of measurement of efficiency of the respirator (in the workplace). Description: (1) personal sampling pump, (2) the cassette and the filter for determining the concentration (in the breathing zone), (3) the sampling line (from the breathing zone), (4) the cassette and the filter to determine the concentration (under a mask), and (5) the sampling line (from the mask).

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