FM53 | APR | Respirator | CBRN Protection

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FM53, The multiple mission mask.

Avon Protection's revolutionary FM53 multi-role Respiratory Protective Equipment (RPE) System has been developed specifically for specialist applications where the user needs to respond to ever changing operational conditions.

The FM53 is globally acclaimed as the most technically advanced mask and offers both positive pressure SCBA, PAPR and negative pressure APR/capability. All of these capabilities are available from one mask platform without the need to change components. Available in right, left or twin port filter configurations.

The FM53 system was developed to address the multiple threats encountered on the modern battlefield, war on terrorism and peace keeping operations.  It provides protection against traditional chemical and biological warfare agents and select toxic industrial materials (TIMs).

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fm53 brochure

For further information
please download the FM53 brochure


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Vision Correction
& Prescription Lens Service


fm53 features1

Field of View  

  • Panoramic single lens visor
  • Optically correct visor
  • Scratch Resistant
fm53 features2


  • 4 face piece sizes for improved fit
  • Chlorobutyl rubber and silicone blend mask
  • Low profile design for superior weapons integration
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  • Electronic Communication Port for integrated voice projection and radio communication
  • Optional VPU provides ability to easily communicate while wearing mask
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Multiple Modes

  • Functions as both a negative and positive pressure mask
  • VREU lever for easy switching between negative and positive pressure modes
Technical Data
CBRN Agent Resistance FM53 Performance
Mustard (H) Greater than 36 hours
Sarin (GB)
Soman (GD)
Laboratory protection factor performance (sodium chloride) Greater than 10,000
NIOSH certified at 2000PF
Breathing Performance (excluding filter)
Re-breathed CO2 0.8%
Inhalation resistance at:
85 l/Min 15 mm WG
160 l/Min 32 mm WG
Exhalation resistance negative pressure mode:
85 l/Min 15 mm WG
160 l/Min 30 mm WG
Exhalation resistance positive pressure mode: 40 mm WG
FM53 mask
(excluded filter)
1.6 lbs
Field of view
Visual field Score
-NIOSH CBRN standard
Materials Used
Mask Visor
Mask Facepiece
Chlorobutyl/Silicone Rubber
Flow Rate
>230 ml/min
NIOSH certifications
with CTCF50 filter
NIOSH certified to 42CFR84
Approval number TC-14G-0323
with CBRNF12B filter
NIOSH CBRN APR standard cap1
Approval number TC-14G-0305


  • FM53 with CBRNF12B filter Certified under CBRN APR Standard Cap1
  • FM53 is a component of the ST53 SCBA system, which is certified under 42 CFR 84
  • FM53 is CE certified to the European PPE Directive 89 / 686 / EEC BSI, Certificate Number  553554
  • BlueBlocker Outsert

    Designed for specialist use to improve weapon sighting. Delivers sharper images by filtering out specific light wavelengths. Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Clear Outsert

    Flexible polycarbonate outsert that simply attaches to 50 series masks to provide additional impact and scratch resistance in extreme environments. 

  • CSCF50

    Designed to protect against all particulate hazards including dust, fume, bacteria and virus, plus riot agent CS and CN.

    Non NIOSH

  • CTCF50

    Low profile combination filter containing a pleated high-efficiency filter element. Specifically designed for removal of riot control agents and tear gases including CS, CN and OC pepper spray.

  • Dust / Decon Filter Covers

    Rubberised covers that fit simply over the filters to provide a shower proof protection for filters, ideal in a decontamination scenario.

  • GPCF50

    A conformal profile general purpose military CBRN filter. Provides protection against chemical, biological and radiological warfare agents in accordance with NATO requirements. Also protects against certain toxic industrial chemicals. 

  • Individual Equipment Carrier

    Compliments the Mask Carrier and provides additional storage of antidotes and first aid equipment. Designed with MOLLE attachment, it offers multiple mounting options and flexible storage options.

  • Laser Outsert

    Specialist accessory for the removal of harmful laser wavelengths commonly produced by laser sighted weapons. Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Mask Carrier

    Premium accessory which provides a complete storage solution for 50 series masks with multiple wearer positions. Designed to carry the mask, filter, spare filter, manual, 2 outserts and VPU.

  • MILCF50

    CBRN filter designed to meet the relevant criteria specified in the NIOSH CBRN APR standard at the 15- minute classification level (CAP1) and the European Standard, EN14387 (A1B2E1K1P3).


    Non NIOSH

  • Mirrored Outsert

    Provides protection from UV light and improves contrast and depth perception. It also hides the wearer’s eyes while reflecting the surroundings to provide psychological advantages in threat situations.

  • Shade 5 Outsert

    Provides the wearer with additional eye protection when plasma arc cutting (PAC). Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Sunlight Outsert

    Additional protection against high level UV light and flash flares. Constructed from flexible polycarbonate providing additional impact and scratch resistance.

  • Universal Carrier

    Storage accessory designed to accommodate any Avon mask and filter. Manufactured from polyester with a polyurethane lining for water resistance. Includes shoulder strap.

  • Vision Correction Assembly

    Enables prescription lenses to be fitted to the 50 Series masks ranging from -8 to +10 Diopters in power. Flexible design allows assembly to fold inside the mask.

  • Voice Projection Unit (VPU)

    Provides integrated voice communications capability with internal microphone for both radio and voice projection use. Low profile design to allow for non-obstructed rifle sighting and easier operation.