Understanding Hyperbaric Oxygen Therapy Sessions: How Long Does Each Session Typically Last?

For patients considering or currently undergoing Hyperbaric Oxygen Therapy (HBOT),  understanding the duration of each session is crucial for effective treatment planning and time management.

What is Hyperbaric Oxygen Therapy?

Hyperbaric Oxygen Therapy involves breathing pure oxygen in a pressurized chamber. This increased pressure allows your lungs to gather more oxygen than would be possible breathing pure oxygen at normal air pressure. HBOT is used to treat several medical conditions.

Duration of a Typical HBOT Session

The duration of a hyperbaric oxygen therapy session can vary based on the specific protocol recommended by your healthcare provider. However, a standard session often lasts between 60 to 90 minutes.

Pre-Session Preparation

Before the session begins, patients are required to change into provided clothing and remove any items that could be damaged by the increased pressure or pose a safety risk. Additionally, patients will be asked to remove makeup, jewelry, or other items that could interfere with the therapy.

During the Session

Once inside the hyperbaric chamber, patients will lie down or sit comfortably depending on the chamber selected (monochamber or multichamber). The chamber is then gradually pressurized, which may cause a sensation similar to that experienced when flying in an airplane or diving underwater. As the pressure increases, patients breathe normally while receiving 100% pure oxygen.

Monitoring and Safety

Throughout the session, trained healthcare providers monitor patients closely. Although rare, complications such as ear discomfort or changes in vision can occur, but medical staff are prepared to address any issues promptly.

Post-Session Procedures

After the session concludes, the pressure inside the chamber is gradually reduced to normal levels. Patients may experience temporary ear discomfort during this decompression phase, but it typically resolves quickly.

Frequency and Duration of Treatment

The number of HBOT sessions recommended varies depending on the condition being treated. Some conditions may require daily sessions over several weeks, while others may necessitate only occasional treatments.

Importance of Understanding Session Duration

Understanding how long a hyperbaric oxygen therapy session lasts is crucial for patients in planning their treatment schedules and managing their time effectively. Given that sessions typically last between 60 to 90 minutes, patients can anticipate the time commitment required for each visit to a hyperbaric facility.


Hyperbaric Oxygen Therapy offers promising benefits for various medical conditions by delivering increased oxygen levels under pressure. Each session generally lasts between 60 to 90 minutes, during which patients receive 100% pure oxygen in a pressurized chamber. This understanding empowers patients to plan their treatment schedules and make informed decisions regarding their healthcare. If you or someone you know is considering HBOT, consulting with healthcare professionals can provide further guidance on session duration and overall treatment plans tailored to individual needs.

Understanding the duration of hyperbaric oxygen therapy sessions is essential for patients embarking on this therapeutic journey, ensuring they can maximize the benefits of HBOT while effectively managing their daily schedules and commitments.