When Philips Respironics recalled millions of CPAP, BiPAP, and ventilator machines in 2021, it set off one of the largest medical device liability battles in recent years. The issue was the sound abatement foam inside many machines. The foam could break down and send tiny particles or chemical gases into the air path. Users breathed them. Some people say that caused cancer, lung damage, asthma, organ damage, or other serious health problems. The legal claims are part of a mass tort, not a single class action. That distinction matters.
A class action puts one lawsuit over many people with the same legal injury, usually for something like a refund or a common policy change. A mass tort keeps individual claims separate because each person’s exposure, injury, and damages are different. In CPAP litigation, one patient may have used the device for a few months and have no symptoms. Another may have used it for years and developed cancer. Grouping all of them into one class action would not work well. Instead, claims are gathered in a court process that lets each person prove his or her own case.
The Philips recall covers several device brands. They include DreamStation, SystemOne, Dorma, and others. Not every machine had the same foam. Not every recalled machine caused harm. The first question in any claim is whether your specific machine is part of the recall. The next is whether you used it long enough and in a way that exposed you to foam particles or gases. The third is whether you have a diagnosed injury that medical experts can link to that exposure.
That last point is where many claims rise or fall. You cannot simply say, “I used a recalled CPAP and I feel tired.“ You need medical records. You need a diagnosis. You need a doctor who can explain how the exposure could have caused or worsened your condition. Common claims involve certain cancers, such as kidney cancer, bladder cancer, lymphoma, and leukemia, as well as serious respiratory and lung conditions. Other claims involve liver damage, heart problems, and severe airway irritation. The exact injury matters because it shapes the evidence, the experts, and the value of the case.
Timing also matters. Every state has a deadline for filing a lawsuit. It is called the statute of limitations. If you wait too long, you can lose the right to sue, even if your claim is strong. The deadline can depend on when you learned about the injury, when you learned about the recall, and where you live. Because the recall began in 2021, some deadlines have already passed or are close. Anyone who thinks they have a claim should not sit on it.
Lawsuits against Philips have focused on what the company knew and when it knew it. Internal documents, testing records, complaints, and regulatory filings can show whether the company ignored signs that the foam was dangerous. To win, a plaintiff must usually prove that the device was defective, that the defect caused the injury, and that the company failed to warn users in time. That is not easy. Philips denies many of the claims and argues that the recall was proper and that no reliable link has been shown for many injuries.
The process is slow. A mass tort can take years. Some cases settle. Some go to trial. Some are dismissed. A lawyer usually handles these claims on a contingency fee, which means the lawyer gets paid only if you recover money. That does not mean the claim is free. Costs for experts, medical records, and court fees still exist. You should ask any lawyer how those costs are handled.
If you used a recalled sleep apnea machine, keep the device or its serial number if you still have it. Save your receipts, prescriptions, and medical records. Write down when you used it and when you stopped. Get a clear diagnosis from your doctor. Then talk to an attorney who handles CPAP and mass tort claims. The strongest cases are built on documents, medical proof, and deadlines that are met. Delays can weaken evidence, and memories fade as time passes. Start gathering proof now.
