11/07/2022
THE PROBLEM WITH PE-PUR FOAM FOUND IN CPAP DEVICES
PE-PUR Foam May Be Inhaled or Swallowed, Presenting a Potential Health Risk
Polyester-based polyurethane (PE-PUR) is a sound abatement foam used to reduce sound and vibration in these devices and other medical equipment. The PE-PUR foam in the affected Philips Respironics CPAP, BiPAP, and ventilator devices may:
-Break down (degrade) into particles which may enter the device’s air pathway and be inhaled or swallowed by the user
-Release certain chemicals into the device’s air pathway, which may be inhaled.
These issues can result in serious injury, which can be life-threatening, cause permanent impairment, and require medical intervention to prevent permanent damage.
To date, Philips Respironics has received several complaints about the presence of black debris/particles within the device’s air pathway. Philips Respironics also has received reports of headache, upper airway irritation, cough, chest pressure, and sinus infection, which may be related to this issue, though the cause of the symptoms cannot be definitively linked.
The potential risks of particulate exposure include irritation to the skin, eye, and respiratory tract, inflammatory response, headache, asthma, and toxic or carcinogenic effects to organs, such as kidneys and liver.
The potential risks of exposure to chemicals released into the device’s air pathway from the PE-PUR foam include headache; dizziness; irritation in the eyes, nose, respiratory tract, and skin; hypersensitivity; nausea/vomiting; and toxic and carcinogenic effects.
The foam degradation may be exacerbated by high heat and high humidity environments, and by use of unapproved cleaning methods, such as ozone.
To date, there have been no reports of death as a result of these issues.
Source: fda.gov