The manufacturer previously received information alleging a cpap device's sound abatement foam became degraded and caused lymph node cancer.The patient did not report to receive any medical intervention.The device was returned to the manufacturer's product investigation laboratory for investigation.The manufacturer also received humidifier.An internal visual inspection of the device and humidifier was completed by the manufacturer and found an unknown white particulate on the iso port as well as dust like and fibrous contamination.Unknown white particulate contamination on the air inlet at the filter area.A hair like contaminant in the blower box.Several unknown red colored particulates inside the tubing connector.Unknown fibrous contamination and hair-like contamination in the humidifier enclosure.Slight fibrous and dust-like contamination on the dry box seal.Light colored in determinant contamination on the dry box.Mineral deposits in the water tank as well as what appeared to be a dark colored bio contamination in one corner of the tank.The manufacturer found evidence of sound abatement foam degradation.The device's downloaded event log was reviewed by the manufacturer and found no errors.The device was applied power and the device operated properly.The manufacturer concludes multiple contaminations of white particulate, fibrous contaminant, hair, red particles,dust, bio contamination and light colored contaminant found were external to the device and mineral deposite consistent with water tank.The manufacturer concludes evidence of sound abatement foam degradation.
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