Rugged and Comfortable Respiratory Protection, the 3M™ 6500 Reusable Respirator offers the following features: brbrSilicone Faceseal - Provides comfort and stability with a soft, but firm faceseal. - Provides long life with a resilient silicone material - Our lightest silicone facepiece - Keep its shape under high heat environmentsbrbrQuick Latch - Drop Down Mechanism - Easy on and off as you move in and out of contaminated areas- No need to remove your hard hat or face shield when lowering or raising your respirator. brbrAdjustable Head Harness Assembly- Optimum fit and comfort with four point adjustable cradle - Lasting performance and improved elasticity Polyester/Spandex straps brbrOvermolded/Low Profile Design - Simplified cleaning and maintenance with fewer parts and crevices - A good fit on many faces with a smaller faceseal footprint. - Improved compatibility f