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 received information alleging the patient is experiencing nausea and rash/inflammation inside the nose from the device.There is no allegation of serious or permanent harm or injury.No medical intervention was required by the patient.The device was returned to the manufacturer's product investigation laboratory for investigation.External investigation found small amounts of yellowish contamination on the front panel, on the air filter, and the rental sticker showed yellowing as well.The product investigation lab also found moderate dust/dirt contamination on the front panel behind the rotary knob.Using a known good power supply and power cord, product investigation lab applied power and verified the unit provided airflow.Internal investigation found yellow discoloration, most likely tobacco contamination, on the bottom enclosure, rear panel, and blower outlet seal.A small piece of hard black plastic was found in the joint between the bottom enclosure and the front panel.The blower box also had a slight yellow tint.During the evaluation of the device, the manufacturer visually inspected the device and found no evidence of foam degradation.The device's downloaded event log was reviewed by the manufacturer and found 0 errors logged.The manufacturer was unable to confirm the customer's complaint.The manufacturer confirmed there was no evidence of sound abatement foam degradation.
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