BRASS MONKEY MERINO FACE MASK
The Merino wool face mask is 17.5microns, which is very fine and very soft
against the skin.
1. First layer - Merino. Touching face
2. Second layer - filter
3. Third layer - Cotton fusing bonded to filter. Stops filter moving around mask and breaking up after washing
4. Final layer merino
Hand wash with wool wash or soap to keep clean.