• How do I use YAMASHIN Filter Sheets?

    Insert a piece of the sheet inside your mask. Make sure the sheet covers both your mouth and your nose. With rolls of YAMASHIN Filter Sheets™, first cut the roll to the desired dimensions (80 to 100 mm in length).

  • Can the masks and sheets be reused? How long can I continue to use them?

    Both are made of YAMASHIN NANO FILTER™ material. This material can be reused after hand-washing with gentle downward motions. With rolls of YAMASHIN Filter Sheets™, we recommend cutting the roll to the desired dimensions and stitching the four sides of the cut sheet to prevent loosening or loss of shape during hand-washing.
    We have confirmed that the sheets show no degradation in performance even after being washed five times.

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