FM54 FAQ

Q: How many sizes is the FM54 respirator available?
A: The FM54 is available in four sizes in a Twin-port configuration that allows the filter to be installed on either side of the respirator.; Extra Small (XS), Small (S), Medium (M) or Large (L).

Q: How do I make sure I have the right size of FM54?
A: Avon can provide you with a sizing tool which helps to determine the correct size of respirator. Also, as a rule of thumb, your eyes should be at, or just above, the centre line of the eye lenses.
Wearers must always conduct a negative pressure fit check prior to use to make sure the respirator will seal to the face. Wearers are advised to conduct a quantitative fit test, at least annually, to confirm the correct respirator size continues to be appropriate. Only use a respirator if a fit check has been satisfactorily completed.

Q: What attachments are available for the FM54?
A: Filter, SCBA and PAPR (powered air) attachments are available. The twin port configuration allows for a respirator to be mounted with a filter while operating in SCBA (Self Contained Breathing Apparatus) or Powered Air Purifying Respirator mode.

Q: How does the FM53 differ from the FM54?
A:The FM54 delivers improved flame hardening coupled with enhanced passive speech performance. The FM54 also has an enhanced, robust lever located on the VREU (Variable Resistance Exhalation Unit), which switches mode from positive to negative pressure without removal of optional VPU (Voice Projection Unit) or loss of protection.

Q: What is the storage life of the FM54?
A: Safe storage of the face respirator is vitally important: It should be stored in a clean and dry environment, ideally within the temperature and relative humidity limits of 20 ºC ± 10 ºC, <80% RH. It should not be stored or transported under heavy or sharp objects. It should not be stored or transported where it could be exposed to extremes of temperatures or direct sunlight. The original packaging should be retained and used for transportation. The respirator and all its components have a storage life of ten years.

Q: How can the FM54 respirator switch between operating modes?
A: The FM54 APR makes use of a Variable resistance exhalation unit (VREU). This contains the exhale positive pressure module which allows the respirator the operational flexibility to be used in APR (Negative Pressure) or SCBA (Positive Pressure) modes.

Q: Can I use communications systems with the FM54?
A: The FM54 has an electronic communications port (ECP) for voice amplification and an electronic pass-through for external radio use. Avon Protection offer an optional low profile voice projection unit with internal microphone which provides clear communication while wearing the mask.