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KN95 mask protection principle

KN95 masks are very popular with everyone, but do you really understand the principle of kn95 masks? The following as a professional mask manufacturer will explain to you their protection principles.
First let us intuitively feel the excellent protective ability of kn95 masks. If the protection capacity of a 3-layer cotton mask is defined as 5, the protection capacity of that layer of KN95 mask is 100, and the difference is extremely huge. If your ears are wide enough to wear a 60-layer cotton mask, it is equivalent to someone else wearing a KN95 mask. KN95 masks, for particles with a diameter of 0.3µm, the filtering effect will be greater than or equal to 95%, which is extremely domineering.
Why is this mask so magical because of its extremely fine mesh?
 
Don't be kidding, it is impossible to make such a fine mesh with any kind of material, but it is in the micron range. In other words, even if it is done, I'm afraid you can't breathe. With such a small mesh, the airflow can't even enter.
 
The core secret of KN95 can have such a strong protection ability is the principle of electrostatic adsorption. Tear off the KN95 mask, inside is a layer of melt-blown non-woven fabric. This melt-blown non-woven fabric is made of polypropylene and is a kind of ultra-fine electrostatic fiber. The biggest feature is that it will have electrostatic adsorption capacity after electret treatment. When the airflow you breathe through the non-woven fabric, the air passes normally, and all the dust and poisonous droplets are all electrostatically adsorbed.
 
If you think about how your hair is absorbed by the sweater in winter, you probably know the principle of KN95 protection.
 
After the air dust is absorbed by the static electricity, it is extremely difficult to separate, and there is no way to clean it. As long as the static electricity is present, the dust and germs are always there. If the static electricity is gone, the mask will be useless and become a normal cotton mask. The most feared thing about static electricity is water. Many people wash their masks and reuse them purely ignorantly. Wetting is waste, wetting water is waste, and wetting water is waste, important things are emphasized three times.
The regular KN95 protective mask has a shelf life because it will lose static electricity and become a waste product if stored for a long time. KN95 masks can indeed be reused, but they need to be handled with professional knowledge, and never be taken for granted.

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