- Every month the air. bottles, bottle valves, reduction valve, intermediate hose, manometer, carrying back plate, the lung demand regulator, the warning alarm for withdrawal, and the breathing mask shall be examined and checked in accordance with the manufacturer’s manual.
- Every year all valves, sealing and speech membranes shall be checked.
- Every second year the exhalation disc must be replaced. This should be done even if the mask has not been used.
- Every five years the complete breathing apparatus shall be submitted to a major service check, which should include a major overhaul of the reduction valves in an authorized workshop .
