Check the listing for details. RZ M3 Mask with 2 Filter and Case - M/L/XL. Condition: New. Listed at 46.48 USD. RZ M3 Mask with 2 Filter and Case - M/L/XL, 191181, Filters up to 99 percent of airborne particulate down to .1 micron, Multi-strap suspension system, Easy and fast filter changes, All day comfort, Introducing the internationally patented and revolutionary RZ Mask M3. Unleashing a new era in protection and comfort – get ready to breathe like never before. Unparalleled versatility with an ingenious three-strap design that allows you to wear it with the included neck strap, ear loops or head straps. Say goodbye to complicated filter changes and choices. There is one filter with activated charcoal, featuring a four-snap anchor-point system. Changing filters has never been this easy or fast. Each RZ Mask M3 comes with upgraded F3 filters that filter 99 percent of.