3MS6502QL - 3M 6500QL Series Medium Half Face Respirator with Quick Latch

Technical Overview of the 3M 6502QL Respirator

The 3M™ Rugged Comfort Quick Latch Half Facepiece Reusable Respirator 6502QL is a medium-sized respiratory protection device engineered for dirty, tough, and active work environments. Part of the 6500 Series, this model distinguishes itself with the proprietary Quick Latch mechanism. This feature allows the wearer to easily drop the respirator down from their face using a one-handed touch latch, without the need to remove head straps, hard hats, or face shields. This capability is critical in industrial settings where workers frequently move between contaminated and safe zones or need to communicate with colleagues intermittently.

Constructed from a resilient silicone material, the facepiece offers a lighter feel than traditional rubber respirators while maintaining a firm seal even in high-heat environments. The silicone formulation is designed to retain its shape and sealing integrity over a long service life, resisting distortion that can occur with softer materials. The low-profile design of the facepiece ensures a wide field of vision and maximizes compatibility with other personal protective equipment (PPE), particularly welding shields and grinding visors.

Breathing comfort is managed by the 3M™ Cool Flow™ Valve. This proprietary valve design reduces breathing resistance and accelerates the evacuation of hot, exhaled air. By keeping the interior of the mask cooler and drier, user fatigue is minimized during extended shifts. The valve cover directs exhaled air downward, which is a critical feature for preventing the fogging of eyewear and face shields. The 6502QL utilizes the standard 3M™ Bayonet Connection system, making it compatible with a vast ecosystem of 3M™ particulate filters and gas/vapor cartridges, allowing for versatile protection against a wide range of industrial hazards.

Key Technical Specifications:

• Facepiece Material: Silicone / Nylon
• Size: Medium (fits approximately 70% of users)
• Harness: Adjustable Head Harness Assembly with Polyester/Spandex straps
• Filter Compatibility: 3M Bayonet Style (2000, 2200, 5000, 6000 Series)
• Maintenance: Fully disassemblable for cleaning and part replacement