Ref. 31640

Preformed mask with valve.
•The patented folded filter offers extremely low breathing resistance.
•The hidden adjustable nose clip and soft nose foam provide a comfortable, customized fit.
•Adjustable buckle for a perfect fit.
•Vertically foldable design for easy transport and individually packed to prevent contamination.
•Latex-free material to avoid irritation.
•Certified against dolomite dust.