3MR7503 / 7503 RESPIRATOR HALF MASK SZ LARGE 3M™ Half Facepiece 7500, Ultimate Reusable The right combination of comfort and durability, the 7500 features a new soft seal design with unique adjustment to reduce tension and pressure points on the face for comfort The 3M™ Cool Flow™ Exhalation Valve design makes breathing easier, reduces heat and moisture buildup in the facepiece, and provides cool, dry comfort 3M™ filter 7093 features improved filter technology providing up to a 25% improvement in breathing resistance. Innovative solid cover design protects and increases the life of the filter as it keeps debris and water out even during showering or decontamination. Unique, spring-loaded filter cover design simplifies negative pressure user seal check. See following page for cartridges and filters. Meets NIOSH Standard.