What is nonwoven fabric?

Wearing a mask will keep you warm and prevent infection in the cold winter, so it's an upgrade to your winter essentials.

Non-woven masks are recommended to prevent infection, but what kind of fabric is non-woven fabric? I would like to explain about.

What is “nonwoven fabric”?
It refers to a sheet-like material in which fibers are intertwined without being woven, and is made into cloth by adhering or intertwining fibers using thermal, mechanical, or chemical action. Characteristics of “unwoven cloth” itself.
Because it has a porous structure (microscopic pores inside), it has good breathability, water absorption, and moisture retention.

Even though the materials of non-woven masks may seem similar at first glance, there are significant differences in performance depending on the manufacturing method and raw materials. Non-woven fabrics made using materials and manufacturing methods that meet high quality standards (such as the purity of raw materials) block fine particles while allowing clean air to pass through. It is also characterized by its resistance to fluffing, and it is also important to note that it does not get stuffy.

The electrostatically charged nonwoven fabric used in N95 masks, commonly known as meltblown, plays the role of the heart, attracting fine particles using static electricity, and has excellent filtration capabilities. There are general masks that use this melt-blown method, but there are various types from pins to holes, so the thickness and confidentiality are completely different from N95.

Pollen, PM2.5, virus, yellow sand.
These air qualities are often included in our daily living environment.

A non-woven mask is a great ally when you go out, but I think you should use a silk mask when sleeping, and a cloth mask for those with sensitive skin.
I believe that choosing a mask that matches the environment in which it will be used is an important tool to take care of your body.

I would appreciate it if you could use this as a reference when choosing a mask.