Each mask is with a signature clau k(not) made from premium thin elastic. It comes with a sewn in nose wire and a slot for disposable filter. Includes 1 single use PM 2.5 activated charcoal filters.
Materials: 100% Cotton Canvas Lining: 100% muslin cotton.
Care: Hand wash and line dry. Warm iron as needed.
Size: One size fits most. Elastic is adjustable with the knots hidden.