3M 7502 Respiratory System and Component Compatibility

The 3M 7502 Medium reusable half-mask facepiece operates on 3M's standard twin bayonet connection platform. Engineered with polybutylene terephthalate (PBT) cartridge and filter holders, the interface secures a wide array of negative-pressure purification elements as well as supplied-air breathing configurations without requiring separate tools or intermediate mounting adapters.

3M Bayonet Filter and Cartridge Interoperability

The dual bayonet connector allows twin lightweight filters and cartridges to lock onto the silicone body with a positive quarter-turn clockwise engagement. Plant safety managers can configure the 7502 facepiece for particulate, gas, vapor, or combination hazards using the following approved 3M product series:

• 3M 6000 Series Gas and Vapor Cartridges: Fully compatible with chemical cartridges including the 3M 6001 (Organic Vapor), 3M 6003 (Organic Vapor/Acid Gas), and 3M 6006 (Multi-Gas/Vapor) cartridges.
• 3M 2000 and 2200 Series Particulate Filters: Mounts directly to the facepiece bayonet ports for disc-style particulate filtration against dusts, mists, fumes, and nuisance odors.
• 3M 5000 Series Particulate Filters: Interoperable with 6000 Series cartridges using approved 3M filter retainers to form combination gas/vapor and particulate filtration systems.
• 3M 7000 and 7093 Series Particulate Filters: Directly locks onto the bayonet fittings, including the encapsulated 3M 7093 P100 particulate filter designed for harsh, high-moisture industrial environments.

Supplied Air and Powered Air Purifying Respirator (PAPR) Systems

Beyond passive air-purifying cartridge configurations, the 3M 7502 facepiece is engineered to transition into active supplied-air configurations across heavy manufacturing, chemical processing, and abatement setups. The facepiece interfaces directly with:

• 3M Dual Airline Systems: Fully compatible with 3M SA-2000 and SA-2100 dual airline supplied air assemblies, mounting to the rear of the bayonet ports to supply clean continuous airflow from an external compressed breathing air line.
• 3M Powered Air Purifying Respirators: Tested and approved for use with 3M Versaflo TR-600 and TR-800 series PAPR assemblies when utilizing compatible breathing tubes and adapters.

Welding Helmets, Eyewear, and Head Protection Integration

The low-profile placement of the twin bayonet ports sweeps attached cartridges and filters backward along the jawline, keeping the field of vision clear and avoiding interference with secondary personal protective equipment. The downward-directing exhalation valve cover channels warm, moist exhaled breath directly toward the chest rather than upward, preventing the fogging of safety spectacles, prescription eye protection, and full-face grinding visors.

The integrated 4-point head cradle and polyester/polyurethane harness system features dual-mode suspension functionality. In drop-down mode, workers can release the neck clasp and slide the silicone facepiece down to rest on the mid-chest during breaks without removing hard hats, bump caps, or overhead welding shields.

Certified Replacement Parts and Wear Components

Maintenance teams can rebuild and service the 7502 facepiece using exact-fit OEM replacement assemblies to maintain AS/NZS 1716:2012, OSHA 29 CFR 1910.134, and NIOSH certified performance: