3M™ 3MR6300 Large 6000 Series Reusable Half Face Air Purifying Respirator. 3M™ Large Half Facepiece Reusable Respirator offers protection against a variety of gases, vapors and particulate hazards. Gray respirator provides compatible and convenient respiratory protection when combined with 3M™ particulate filters/cartridges/dual airline system. Ideal for use in general applications such as assembly, cleaning, demolition, facility maintenance, grinding, machine operations, painting, sanding and welding. Respirator made from thermoplastic elastomers provides comfort and a snug fit. It features a lightweight construction with easy to adjust head straps and a low-profile swept back design of the cartridges for better visibility and balance.