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How do medical masks prevent dust?
2026-01-15
Generally speaking, to ensure that a mask provides effective protection for the body, there are certain requirements regarding its specifications. The mask must cover both the mouth and nose, allowing the wearer to breathe freely. Typically, adult medical masks measure around 18 by 9 centimeters, while children’s medical masks measure approximately 15 by 9 centimeters.
Medical masks are made from nonwoven fabric—a material that doesn't require weaving and is formed by bonding fibers together. They commonly come in two-ply, three-ply, and multi-layer designs, including activated carbon masks with several layers.
Medical masks can effectively block fine particulate matter in the air, especially those with a particle size of 2.5 micrometers or smaller—known as respirable dust. This particle size can directly enter the alveoli, posing significant health risks to the human body. The principle behind the effectiveness of medical masks is that as airborne particles pass through the fabric layers of the mask, they are progressively trapped and adsorbed onto the fabric fibers, allowing only clean air to enter the respiratory system.
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