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Surgical Masks. A surgical mask is a loose-fitting, disposable device that creates a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment.N95 Mask vs. KN95 Mask Difference: Where to Buy Online types of anti haze ventilation mask standardsAug 26, 2020 · The N95 masks do not have these requirements to meet their standard. Still, he says, N95 mask requirements are a bit more stringent regarding the pressure drop in the mask MOH | FAQs on Haze Health AdvisoryJul 15, 2019 · EN-149 is one of the European Standard for masks while N95 masks are certified by the US National Institute for Occupational Safety and Health (NIOSH). Both types of masks are designed to reduce wearers respiratory exposure to airborne contaminants such as particles, gases or vapours.

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