This 3 ply material is made up from a melt blown placed between non-woven fabric, the melt-blown material acts as the filter that stops microbes from entering or exiting the mask.
This 3 ply material is made up from a melt. This melt is blown placed between non-woven fabric-blown material acts as the filter. This filter stops microbes from. This filter is entering or exiting the mask. Non-woven fabric is the melt.