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May 06, 2020·Certified/vetted mask: You will be able to smell it, but only very faintly. Poor quality/fake mask: You will be able to smell it full force. Why is that? Certified KN95 masks have a filtration of ≥95%, which means it is designed to filter out at least 95% of particles (0.3 micron-particles). Break down of Certified mask components FDA

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May 07, 2020·One variation of the mask has an exhalation valve right in front of the mouth. It’s a one-way trip for airflow. When you exhale, the valve opens. Once you stop, it closes and offers the same ...

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A Certain Type of N95 Mask May Do More Harm Than Good

May 16, 2020·Experts say similar masks with a valve are also readily available online. Consumers know that N95 masks are the gold standard for healthcare workers and are difficult to get.

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Our KN95 Mask is certified to standards similar to the EU FFP2 certification and the US N95 certified mask. KN95 standard means these masks are effective against 95 percent of particles with a mass median diameter of 0.3 microns or larger. Properly worn masks can protect very well against PM10, PM2.5, and smaller particles.