3M™ Filter Retainer 501 – For Combining Particulate & Gas/Vapour Filtration Enhance the versatility of your respiratory protection with the 3M™ Filter Retainer 501. Designed to secure 3M™ Particulate Filters (5000 Series) onto compatible 3M™ Gas and Vapour Cartridges, this retainer allows users to customize their protection for a broader range of workplace hazards. Key Features: Flexible Compatibility: Easily attaches 3M™ Particulate Filters (5000 Series) to 3M™ Gas & Vapour Filters for combination protection. Quick to Install: Simple snap-on design enables fast assembly and filter changes. Tailored Protection: Helps users adapt their respirator for mixed exposure to particulates, gases, and vapours. Reusable & Durable: Made from tough plastic for repeated use in demanding industrial settings. Designed for Use With: 3M™ Half and Full Facepiece Reusable Respirators 3M™ 5000 Series Particulate Filters 3M™ 6000 Series Gas & Vapour Cartridges Ideal For: Spray painting Chemical handling Construction Manufacturing Maintenance and more ⚠️ For occupational use only. Ensure compatibility with respirator and filters prior to use.