WEDNESDAY, Aug. 27, 2025 (HealthDay News) -- The U.S. Food and Drug Administration has sent letters to health care providers alerting them to the importance of following manufacturer instructions for the safe use of hyperbaric oxygen therapy (HBOT) devices.

HBOT uses a pressurized chamber to deliver 100 percent oxygen, helping the lungs absorb more oxygen to support healing and fight infections, according to the FDA.

The agency has recently received reports of fires with HBOT devices causing serious injuries and deaths. Though rare, these events highlight the importance of following manufacturer instructions to reduce risks, the FDA notes. The agency advises health care providers to follow strict fire prevention and safety measures with HBOT devices, including proper grounding.

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