Before it can be worn, RPE must be checked to ensure it’s in good condition. Maintenance checks include assessing the condition of the following:
Head harness, facepiece, seal, and visor
Inhalation and exhalation valves
Threaded connectors and seals
Filters, including expiry dates
Battery packs, including checking their charges
Airflow rate of power-assisted RPE
Additionally, RPE should be complete, meaning all of the components are accounted for, and it should be assembled properly before the wearer puts it on.
On top of checking the condition of RPE before putting it, a more thorough monthly test is necessary. Records of these examinations must be retained for five years, and the checks should be carried out by a person with training in the field.