This entry was posted on April 16, 2020 by First Aid Product Team.
How 3-ply Procedural Masks Work

The design of the
procedural masks (often referred to as “
surgical”
masks) depends on the mode; usually, the masks are
three-ply (three layers). This three-ply material is made up of a
melt-blown polymer, most commonly
polypropylene, placed between the
non-woven fabric. The melt-blown material acts as the
filter that
stops microbes from entering or exiting the masks. The inner and outer layers are fluid resistant that
stops airborne droplets from entering or exiting the user's nose and mouth.
Pleats are commonly used to allow the user to expand the mask such that it covers the area from the nose to the chin. The masks are secured to the head with
ear loops, head ties, or elastic straps. Typically, the normal time you can
wear a mask without changing it is about 4-hours. As the melt-blown polymer becomes full, the user will have a more difficult time
breathing and the user's face will become hot very quickly. Masks made of non-woven material cannot be washed, so they must be disposed of after use.

This entry was posted in Random Bits of Noise, Safety Tips and tagged nose, chin, polypropylene, airborne, breathing, 3 ply, pleated, surgical mask, procedural mask, three-ply, melt-blown polymer, non-woven fabric, filter, microbes, fluid resistant, mouth, pleats, ear loop, head tie, elastic strap on April 16, 2020 by First Aid Product Team.
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