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Additional information was received on december 26, 2023, and section h11 should be reported as: the manufacturer was contacted in reference to the voluntary field safety notice / recall notification related to the sound abatement foam in certain cpap, bipap, and mechanical ventilator devices.The manufacturer previously received information alleging sorethroat and some bleeding related to a cpap device's sound abatement foam.There was no report of serious patient harm or injury.The device was returned to the manufacturer's quality product investigation laboratory for investigation.The device was evaluated and manufacturer observed observes dust/dirt and fibrous contamination, inconsistent with sound abatement foam degradation, throughout the device enclosure and airpath, suggesting that it originated from an external source, observed evidence of water ingress in the blower box and blower, suggesting the use of non distilled water in the humidifier water chamber and confirm evidence of water ingress in the blower box.The device's downloaded event log was reviewed by the manufacturer and found one error code.The manufacturer concludes there was no evidence of sound abatement foam degradation/breakdown and confirms the presence of contamination in the airpath and they were unable to directly address the symptoms.Sections d8, d9, h2, h3, h6 has been updated in this report.
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