In accordance with BS EN 14470, a competent person must regularly inspect safety cabinets. This inspection should include: Condition of the fusible links / fire protection valves Condition of the fire protection insulation Condition of the fire protection seals (intumescent) Condition of the hinges Functionality of the door closing Functionality of the door interlock Condition of the body (corrosion) Compliance with Ex-areas Measurement of the exhaust air volume flow (for technical ventilation) It is also a requirement of Section 6 of the Health and Safety at Work Act 1974 that equipment for use at work are regularly cleaned or maintained. References Cabinets (furniture)