Reusable respirator with quick latch drop down mechanism for easy on and off as wearers move in and out of contaminated areas No need to remove your safety helmet or faceshield when lowering or raising your respirator Resilient silicone faceseal helps provide comfort, durability, and stability with a soft but firm seal Exhalation valve cover helps direct exhaled breath and moisture downward to reduce fogging of eyewear and grinding and welding shields Low profile half facepiece design offers a wider field of view and better compatibility with welding and grinding shields 3M Cool Flow Valve provides easier breathing and reduced heat and moisture build-up Adjustable head harness assembly offers improved fit and comfort Bayonet connection fitting system to a broad range of filters to protect against gases, vapours and particulates