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N95 respirators and surgical masks are examples of personal protective equipment that are used to protect the wearer from airborne particles and from liquid contaminating the face.

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wearing time range AS NZS 1716 2012 standard mask parts, A cluster randomised trial of cloth masks compared with 0183;32;A cluster randomised trial of cloth masks compared with medical masks in healthcare workers. which may or may not have included mask wearing. Mask wearing was measured and documented for all participants, including the control arm.

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Jul 10, 2020 · For the public, the two major options are a surgical mask (also known as a medical mask) or a cloth mask. While you can buy respirators (known as N95 masks …

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Jul 20, 2020 · Denis Rancourt, Ph.D., a former full professor of physics, is a researcher with the Ontario Civil Liberties Association in Canada. He’s held that volunteer position since 2014, which has given him the opportunity to dig into scientific issues that impact civil rights. He also did postdoctoral work in chemistry. Here, we discuss the controversial topic of face masks.

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