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Respiratory Protection and Surgical Face Mask CE Certificate

Manufacturers have to characterize and classify surgical face masks in type I or II in the European market and in level 1, 2 ot 3 for the American market. Evaluation of surgical masks in Europe. In Europe, surgical masks must wear a CE mark and comply with the requirements defined in EN 14683: Medical face masks - Requirements and test methods.

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Why your N95 mask could endanger others - SFGate

May 04, 2020 · A 2008 study by scientists in the Netherlands found that well-fitted N95 masks provided adults with about 50 times as much protection as home-made masks and roughly 25 times as …

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COVID-19 - California Department of Public Health

The California Department of Public Health is committed to health equity and collecting more detailed racial and ethnic data that will provide additional understanding for determining future action. Health outcomes are affected by forces including structural racism, poverty and the disproportionate prevalence of underlying conditions such as ...

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How Surgical Masks are Made, Tested and Used

Surgical Mask Tests. Once surgical masks are made, they must be tested to ensure their safety in various situations. There are five tests they must be put through: Bacteria filtration efficiency in vitro (BFE). This test works by shooting an aerosol with staphylococcus aureus bacteria at the mask at 28.3 liters per minute.

N95 Respirators and Surgical Masks (Face Masks) | FDA

N95 respirators and surgical masks (face 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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The area of sampling is shown in Figure 1.With wearing time extension, an increasing trend can be seen in the CFUs from the surface of SMs (Fig. 2A).Owing to the high variation, significance was only identified between the 0-hour and 4- to 6-hours groups (Fig. 2B).However, when we extracted the data separately and compared the CFUs from the surface of SMs used by the same surgeon, significant ...

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