- classic face mask made of non-classical material
- sewn face mask is made of 3PLY FILTER nanosilver material, which proved to be 92% effective during the laboratory testing, filtrating the particles of size 80-150 nm ( viruses particles size)
- it can be used repeatedly (we recommend about 3-5x)
- it can be boiled at 80C for 20 minutes
- cannot be used if the inner nanofiber layer is damaged or broken
- 5 pcs in a package
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