We recommend INSPECTING the respiratory for damage, cracks or missing parts. Please check the mask exhalation valve. If tearing or distortion of the valve, the exhalation valves should be changed.
EVERY 6 – 12 MONTHS: Harness and neck pads should be replaced depending on the level of use, every 6-12 months. The masks are made of silicone and resilient to aging and wear and tear. Close inspection of the mask should be conducted at least annually. The Respiratory Protection Standards recommend a fit test annually to confirm the correct fit of the mask