3M™ Ultimate FX Full Facepiece Reusable Respirator – FF-400 Series
Product Overview

The 3M Ultimate FX Full Facepiece Reusable Respirator FF-400 Series is designed for professionals who need durable respiratory protection combined with full-face eye and face coverage.

Unlike half-mask respirators, the FF-400 protects the wearer’s eyes and face while providing a secure respiratory seal. When equipped with the appropriate 3M bayonet-style cartridges or filters, the facepiece can be configured for protection against selected gases, vapors, particulates, or combinations of these hazards.

The FF-400 Series features a large, wide-view lens designed to provide an excellent field of vision while helping protect the eyes and face. The current lens uses a scratch-resistant hard coating to improve durability in demanding industrial environments.

Comfort is a major focus of the Ultimate FX design. A soft silicone faceseal and silicone nose cup conform comfortably to the face, while a six-strap head harness and 3M comfort cradle help distribute pressure and maintain a secure fit.

The integrated 3M Cool Flow Valve helps release warm, moist exhaled air from inside the respirator, helping improve comfort during extended wear.

A built-in passive speaking diaphragm is positioned to improve voice transmission, helping workers communicate more clearly without removing respiratory protection.

The FF-400 Series is available in Small, Medium, and Large and is designed for demanding industrial and occupational applications including chemical processing, painting, manufacturing, utilities, maintenance, pharmaceutical production, and hazardous material operations.

Key Features

• Genuine 3M™ Ultimate FX reusable full-face respirator
• FF-400 Series
• Premium full-face respiratory protection
• Large lens provides excellent field of view
• Scratch-resistant hard-coated lens
• ANSI Z87.1 high-impact eye and face protection
• Soft silicone faceseal
• Soft silicone nose cup
• Six-point adjustable head harness
• 3M Comfort Cradle
• Passive speaking diaphragm
• Improved voice communication
• 3M™ Cool Flow™ Exhalation Valve
• Low-profile bayonet-style cartridge connection
• Compatible with numerous 3M cartridges and filters
• Compatible with selected 3M PAPR systems
• Compatible with selected 3M supplied-air systems
• Replaceable components for extended service life
• Available in Small, Medium, and Large
• Designed for industrial and occupational use

Why Choose the 3M Ultimate FX FF-400?

The FF-400 Series is designed for workers who need more than basic respiratory protection.

A full-face respirator combines respiratory protection with eye and face protection, reducing the need for separate safety goggles in many properly configured applications.

The Ultimate FX design adds several premium features that make it particularly appropriate for workers who wear respiratory protection for long periods.

These include:

• Soft silicone sealing surfaces
• Six-point suspension
• Comfort cradle
• Large field-of-view lens
• Cool Flow exhalation valve
• Speaking diaphragm
• Replaceable components

The result is a respirator designed to provide a balance of protection, comfort, durability, communication, and visibility.

Large Scratch-Resistant Lens

The FF-400 Series features a large lens designed to provide an excellent field of vision.

The wide viewing area helps workers maintain peripheral awareness while performing tasks around machinery, piping, equipment, ladders, and other workplace hazards.

The current FF-400 lens incorporates a scratch-resistant hard coating, helping protect the lens against everyday wear and helping maintain visibility throughout the respirator’s service life.

The lens also meets applicable ANSI Z87.1 high-impact requirements for eye and face protection.

Soft Silicone Faceseal & Nose Cup

The Ultimate FX uses a soft silicone faceseal and silicone nose cup.

Silicone provides an excellent combination of:

• Flexibility
• Comfort
• Durability
• Resistance to repeated cleaning
• Long service life
• Reliable sealing performance

The softer sealing surfaces can be particularly valuable for employees who wear respirators for extended portions of a work shift.

Six-Point Head Harness

The FF-400 Series uses a six-point adjustable head harness.

Six adjustment points allow the wearer to evenly tension the facepiece and achieve a secure fit around the face.

The harness works with the integrated 3M Comfort Cradle, which helps position the suspension comfortably on the back of the head while reducing pressure points and hair pulling.

Passive Speaking Diaphragm

A built-in passive speaking diaphragm helps improve communication while the respirator is being worn.

Full-face respirators can naturally make speech more difficult to understand. The FF-400 speaking diaphragm is positioned near the mouth to transmit the wearer’s voice more clearly.

This can be particularly helpful in environments where workers need to communicate with:

• Supervisors
• Spotters
• Maintenance personnel
• Safety personnel
• Other members of a work crew

3M™ Cool Flow™ Valve

The integrated 3M Cool Flow Exhalation Valve helps warm, moist exhaled air leave the facepiece.

This can help reduce:

• Heat buildup
• Humidity
• Moisture accumulation
• Exhalation resistance

The feature is particularly valuable during physically demanding jobs and extended respirator use.

3M Bayonet-Style Connection

The FF-400 Series uses 3M’s traditional bayonet-style cartridge and filter connection.

This provides compatibility with a broad range of 3M respiratory protection products, including selected:

• 2000 Series filters
• 5000 Series filters
• 6000 Series cartridges
• 7000 Series filters
• Combination cartridge/filter configurations

The exact cartridge or filter must always be selected according to the specific contaminant, concentration, application, and respiratory protection program.

Multiple Respirator Configurations

The FF-400 platform provides flexibility beyond standard air-purifying respirator use.

Depending on the components selected, the facepiece can be incorporated into compatible:

• Air-Purifying Respirator systems
• Powered Air-Purifying Respirator systems
• Supplied-Air Respirator systems

This versatility allows organizations to standardize on a familiar facepiece while configuring respiratory protection for different workplace hazards.

Ideal Applications

• Chemical processing
• Petrochemical facilities
• Refineries
• Pharmaceutical manufacturing
• Painting and coatings
• Spray painting
• Industrial maintenance
• Manufacturing
• Utilities
• Mining
• Oil and gas
• Hazardous material handling
• HazMat response
• Laboratory operations
• Metal processing
• General industrial respiratory protection

Applications involving gases and vapors

Particulate protection

Combination gas, vapor, and particulate applications

Actual use depends on the cartridges, filters, supplied-air components, or PAPR system selected.

Product Specifications
Specification Details
Manufacturer 3M™
Product Line Ultimate FX
Series FF-400
Product Type Reusable Full Facepiece Respirator
Facepiece Material Silicone
Nose Cup Material Silicone
Lens Large Hard-Coated Lens
Lens Coating Scratch Resistant
Eye / Face Protection ANSI Z87.1 High Impact
Head Suspension 6-Point Strap
Head Cradle 3M Comfort Cradle
Speaking Diaphragm Yes
Exhalation Valve 3M Cool Flow Valve
Connection Type Bayonet
APR Compatible Yes
PAPR Compatible Yes, with approved systems
Supplied Air Compatible Yes, with approved systems
Reusable Yes
Replaceable Parts Yes
Sizes Small, Medium, Large
Intended Use Industrial / Occupational
Frequently Asked Questions
What is the 3M Ultimate FX FF-400 Series?

The FF-400 Series is a premium reusable full-face respirator platform designed for industrial and occupational respiratory protection.

What sizes are available?

The FF-400 Series is available in three sizes:

FF-401 – Small

FF-402 – Medium

FF-403 – Large

Does the FF-400 include cartridges or filters?

No. The facepiece is normally sold separately from the cartridges and filters.

The appropriate 3M cartridges or filters must be selected according to the workplace hazard.

What type of cartridge connection does it use?

The FF-400 uses the standard 3M bayonet-style connection.

What filters fit the FF-400?

The facepiece is compatible with selected 3M bayonet-style 2000, 5000, and 7000 Series filters.

What cartridges fit the FF-400?

It is compatible with selected 3M 6000 Series gas and vapor cartridges.

Does it work with P100 filters?

Yes. Compatible 3M bayonet-style P100 filters can be used when appropriate for the hazard and approved configuration.

Does the respirator have a speaking diaphragm?

Yes. The FF-400 has an integrated passive speaking diaphragm designed to improve voice communication.

Does it have an exhalation valve?

Yes. It incorporates the 3M Cool Flow Exhalation Valve to help release warm and moist exhaled air.

How many head straps does the FF-400 have?

The facepiece uses a six-point adjustable head harness together with a comfort cradle.

Is the faceseal silicone?

Yes. The FF-400 uses a soft silicone faceseal and silicone nose cup for comfort and durability.

Does the lens provide eye protection?

Yes. The large lens meets applicable ANSI Z87.1 high-impact eye and face protection requirements.

Does the FF-400 lens still have Scotchgard coating?

Current-production FF-400 lenses use a scratch-resistant hard coating. Older versions used Scotchgard Paint and Stain Protector, but 3M transitioned away from that coating beginning in January 2025.

Can the FF-400 be used with a PAPR?

Yes. The FF-400 can be incorporated into compatible 3M powered air-purifying respirator configurations when used with the appropriate approved components.

Can it be used with supplied air?

Yes. The FF-400 is compatible with selected 3M supplied-air systems when configured with the appropriate approved components.

Is the respirator reusable?

Yes. The FF-400 is a reusable respirator. It should be inspected, cleaned, maintained, and stored according to 3M instructions.

Are replacement parts available?

Yes. Replacement lenses, head harnesses, comfort cradles, valves, nose cups, speaking diaphragms, bayonet assemblies, and other components are available.