3M Versaflo M-405 Facepiece Assembly with Standard Hood and Visor

3M Versaflo M-405 Facepiece Assembly with Standard Hood and Visor

The 3M Versaflo M-405 facepiece assembly is an integrated respiratory protection solution designed for demanding industrial environments: welding, painting, composite finishing and surface preparation. It combines respiratory, eye, head and compatible hearing protection in a single unit, simplifying the equipping of workers exposed to airborne contaminants.

Compliant with NIOSH standards and ANSI Z89.1 Class G Type 1, this assembly features an assigned protection factor (APF) of 1,000 : one of the highest available for PAPR equipment. It is compatible with the Versaflo TR-300 Series M PAPR systems as well as AP-600 portable panels, MST fixed and portable panels, Series W fixed panels, and the low-pressure ambient air pump.

3M manufacturer code: 7100009447, model: M-405

The M-405 assembly includes the RM925 polycarbonate coated visor, the M-444 inner collar and the standard M-445 outer hood. The polycarbonate visor offers high resistance to impacts and scratches, with a clear tint for optimal visibility. The lightweight and balanced design reduces fatigue during extended shifts.

Components are individually replaceable, allowing the equipment's useful life to be extended and reducing long-term operating costs. Compatibility with 3M Peltor hearing protection and an attachable microphone makes it a versatile choice for workstations requiring simultaneous communication and protection.

Benefits

Industrial sectors where the M-405 assembly is required

• Welding and cutting: protection against welding fumes, metal particles and radiation. The APF of 1,000 meets the strictest regulatory requirements for welders exposed to heavy metals (lead, chromium, manganese).

• Painting and coating applications: filtration of organic vapors and isocyanates during automotive, industrial or composite finishing. Compatible with spray booths and supplied-air systems.

• Composite finishing and surface preparation: protection against resin dust, fiberglass fibers and abrasive polishing agents. Used in aerospace, marine and recreational vehicle manufacturing.

• General manufacturing and transportation: multi-contamination environments where a single piece of equipment must cover multiple simultaneous hazards (dust, vapors, impacts, noise).

Integrated protection and reduced non-compliance risks

• A single piece of equipment covers the head, eyes, respiratory tract and ears: fewer unprotected areas, reduced risk of missed protection during donning.

• NIOSH-compliant APF of 1,000: meets the requirements of the most rigorous respiratory protection programs in Quebec and North America.

• Compliant with ANSI Z89.1 Class G Type 1 for head protection: integrable into prevention plans without additional equipment.

Comfort and ergonomics for intensive use

• Lightweight and well-balanced design that reduces neck fatigue during long workdays.

• Adjustable airflow between 50 and 100 cfm depending on thermal comfort and protection needs.

• Compatibility with integrated 3M Peltor hearing protection for acoustic coverage without additional glasses or earplugs to manage.

Durability and simplified maintenance

• Individually replaceable components: visor, inner collar and outer hood are all available separately to reduce the cost of full replacement.

• Clean with a damp cloth; do not immerse in water. Inspect the visor before each use and replace immediately if deep scratches, discoloration or cracks affect visibility.

• Store away from direct light, excessive heat and corrosive chemicals to preserve the integrity of the polycarbonate.

FAQ – Frequently Asked Questions

What is the difference between the M-405 assembly and the RM407 facepiece?

The M-405 assembly is a complete ready-to-use system that includes the RM925 visor, M-444 inner collar and standard M-445 outer hood. The RM407 facepiece, on the other hand, comes with a flame-resistant hood and is primarily intended for environments exposed to flames and molten metal splatter. The M-405 is more oriented toward painting, composite and general manufacturing applications where flame resistance is not the primary criterion. Both models share the APF of 1,000 and compatibility with Versaflo TR-300 Series M PAPR systems.

Which PAPR systems is the M-405 assembly compatible with?

The M-405 assembly is compatible with 3M Versaflo TR-300 Series M PAPR systems, Versaflo AP-600 portable panels, MST fixed and portable panels, Series W fixed panels, and the low-pressure portable ambient air pump. For high-flow applications or IDLH environments, it is recommended to verify the specific configuration with the industrial hygiene officer. A minimum airflow of 170 L/min (6 cfm) is required to maintain positive pressure in the helmet according to NIOSH standards.

How do you maintain and clean the Versaflo M-405 helmet between uses?

Wipe the assembly with a damp cloth after each use. Do not immerse in water or use solvents that could damage the polycarbonate visor or hood materials. Visually inspect the visor before each shift: any deep scratch, discoloration or crack requires immediate replacement of the RM925 visor. The M-444 inner collar and M-445 outer hood should be replaced according to 3M's recommended cycle or upon visible signs of deterioration. Store the assembly in its original packaging or in a protective bag away from direct light.

Suggestions complémentaires

To complete your industrial equipment with the M-405, the gloves Superior Touch (GS13BKPUQ) offer excellent dexterity for finishing and assembly work, while the latex Horizon (G051144) are suited for light handling in workshop environments. For supplementary hearing protection, the earplugs MAX LITE (OA1102) and EARsoft regular (OA1250) provide supplementary acoustic protection when the integrated Peltor coverage is removed for maintenance. The coverall V1766 in 100% cotton provides ARC 2 body protection suited for environments with electrical arc or projection risks. Under "Accessories" at the bottom of the page.

For direct accessories in the M series, the replacement RM925 in polycarbonate is available to extend the life of your assembly, the cushion M-957 (RM957) improves comfort during long days by absorbing perspiration, and the cover M-448 (RM448) offers extended durability for particularly demanding environments.

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