3MSM-937 - 3M Versaflo M-Series Flame Resistant Face Seal Replacement

Reliable Respiratory Protection for Hot Work Environments

The 3M Versaflo M-937 Flame Retardant Face Seal is a critical replacement component designed to maintain the integrity and safety of 3M Versaflo M-Series headtops. Engineered specifically for industrial environments where sparks, hot particles, and molten metal splatter are present, this face seal is constructed from high-quality flame-resistant polyester. Unlike standard face seals, the M-937 is built to withstand the rigorous demands of welding, grinding, and metal fabrication, ensuring that the user's respiratory equipment remains functional and safe even in challenging conditions.

This face seal is compatible with the M-100, M-200, and M-300 Series headtops, making it a versatile stock item for facilities utilizing multiple Versaflo configurations. The primary function of the M-937 is to create a barrier between the user's face and the external environment. This barrier is essential for Powered Air Purifying Respirator (PAPR) systems, as it allows the unit to build and maintain positive pressure inside the headtop. This positive pressure is what prevents contaminated air—containing fumes, dust, or smoke—from entering the breathing zone. A compromised or incorrect face seal can significantly reduce the Assigned Protection Factor (APF) of the entire system, putting the worker at risk.

Installation of the M-937 is straightforward and intuitive, allowing for quick change-outs during shifts or maintenance intervals. The seal attaches securely to the headtop frame, ensuring no gaps exist that could compromise safety. For safety managers and industrial hygienists, ensuring that welders are equipped with the correct flame-retardant accessories is a key part of compliance and injury prevention. The M-937 meets the rigorous standards expected of 3M personal protective equipment.

Key Technical Benefits

Beyond its flame-resistant properties, the material is designed to be comfortable against the skin for extended periods. While the M-935 is a standard seal, the M-937 is the upgrade required for hot work. Regular inspection of the face seal is recommended; if rips, tears, or significant wear are detected, immediate replacement is necessary to ensure the PAPR system functions as intended.