Resmed has requested for the mask to be returned so that an engineering investigation can be performed.The mask has not been returned to resmed.Photos of the mask provided to resmed revealed that the anti-asphyxia valve flap had detached from the mask elbow.The investigation methods, results and conclusion are not finalized at this stage.If more information is available, a supplemental report will be submitted.The airfit f30 user guide provides the following warning: - always follow cleaning instructions.Some cleaning products may damage the mask, its parts and their function, or leave harmful residual vapors.Visual criteria for product inspection: if there is any visible deterioration of a mask component (cracking, crazing, tears etc.), the component should be discarded and replaced.Resmed reference#: (b)(4).
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