C50 FAQ

Q: How many sizes are the C50 available?
A: The respirator is available in three sizes, L (Large), M (Medium), S (Small).
The C50 is also available in a Twin-port configuration that allows the filter to be installed on either side of the respirator.

Q: How do I make sure I have the right size of C50?
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: Can I drink whilst wearing the C50 respirator?
A: Yes. See answers regarding drinking in the general section. A high flow fail safe drinking device allows connection to either a canteen or bladder type hydration system.

Q: Can I use communications systems with the C50?
A: The C50 has a communications pass-through to attach a voice projection unit (VPU) and other radio electronic communications systems which use an internal microphone. Radio communications systems may vary between users. Contact Avon for details of compatible microphones and communication leads.

Q: What is the shelf life of the C50 respirator?
A: The shelf life of a C50 respirator remaining sealed in its original unopened packaging, correctly stored, is twenty years. Once opened and in use, respirator components subject to ageing (especially valves) must be routinely replaced to maximise useful life. If any deterioration or damage is suspected to any component, replace immediately. See the user manual for component replacement intervals.