NIOSH approved for environments containing certain oil and non-oil based particles. Use with 3M™ Gas and Vapor Cartridges, 6000 Series or 3M™ Filter Adapter 603. Allows for replacement of filters prior to change out of cartridges for cost savings. Held in place by required 3M™ Filter Retainer, 501. Advanced Electret Media (AEM) is designed to provide lightweight, easy breathing comfort. Simple to install. Use for protection in hazardous environments. For workplace/occupational use only. 3M™ Bayonet Particulate Prefilters can be attached to 3M™ Bayonet Style Gas & Vapor Cartridges 6000 series to provide particulate protection from certain solid and liquid particles when used with 3M™ Bayonet Style Facepieces. Use the 3M™ Filter Retainer 501 to attach one filter to each cartridge. 3M™ Bayonet Particulate Prefilters are used to add particulate protection to 3M™ Bayonet Gas & Vapor Cartridges. Replaceable for cost savings: these particulate filters are designed to be easily replaced for a cost-effective solution without changing out your cartridges. Use 3M™ Bayonet Particulate Prefilters with 3M™ Gas & Vapor Cartridges and the 3M™ Filter Retainer 501 to help filter certain particulates including dusts and mists. Or, use these filters with 3M™ Filter Adapter 603 and the 3M™ Filter Retainer 501 to help reduce particulate exposures only. These filters are easy to install, requiring minimal training. 3M™ Bayonet Particulate Prefilters are compatible with 3M™ Half Facepieces 6000, 6500/6500QL, 7500 Series, Full Facepieces 6000, FF-400, 7800 Series, 3M™ Scott™ AV-3000 HT and AV-3000 SureSeal Facepieces with AV-632 Bayonet Adapter, thus helping to reduce inventory needs. Help protect your workforce: 3M offers a free online tool to help you select the appropriate respirators, cartridges, and filters for your workplace respiratory hazards and contaminants and help determine cartridge change-out schedules. 3M Select and Service Life Software (www.3m.com/sls) contains more than 700 different chemicals and provides documentation of your choices. After you've determined the contaminants and exposure levels in your work environment, help protect your employees with a properly fitted 3M™ Reusable Respirator and corresponding N95 or P95 particulate filter. 3M™ Bayonet Particulate Prefilters are NIOSH-approved as either N95 or P95 particulate filters and help provide respiratory protection in environments containing certain oil (P95) and non-oil (N95) based particulates when used with 3M™ Half and Full facepieces and the 3M™ Filter Retainer, 501. These filters help provide respiratory protection from particulate contaminant concentrations up to 10 times the OSHA Permissible Exposure Limit (PEL) with half facepieces and up to 50 times the OSHA Permissible Exposure Limit (PEL) with quantitatively fit tested full facepieces. Not for use in environments that are immediately dangerous to life or health (IDLH) or require the use of a filter approved to 100 level filter efficiency (N100 to P100). Change your 3M™ Bayonet Particulate Prefilters if they become dirty, damaged, or difficult to breathe through.