3M 4251+ MAINTENANCE FREE REUSABLE RESPIRATOR HALF MASK

A newly enhanced valve assembly helps to reduce exhalation breathing resistance for improved breathing comfort Lightweight, well-balanced design Integrated filters mean it’s ready to use and maintenance free Soft, close-fitting face seal made with textured, non-allergenic material Adjustable head cradle and easy to fasten neck straps Centrally-positioned exhalation valve helps reduce heat and moisture build-up in hot and humid conditions Available in a choice of four models Includes a resealable bag for hygienic storage and transportation