Hyperbaric Oxygen Therapy


Hyperbaric Oxygen Therapy is a treatment where a patient is breathing in 100% pure oxygen in a sealed chamber that is placed under atmospheric pressure. This treatment allows for the patient to be exposed to oxygen at much higher levels then what is available at sea level and breathing regular air (21% Oxygen).


There are several processes that occur in your body during an HBOT treatment (or “dive”), these include:

  • Increased saturation of oxygen in bloodstream
  • Increase energy
  • Reduced swelling & inflammation
  • Accelerated repair of damaged tissue
  • Development of new capillaries
  • Promote Stem Cell release
  • Induces Angiogenesis (development of new blood vessels)
  • Increased circulation
  • Stimulates immune system
  • Aids in fighting infection against oxygen-sensitive organisms

To know more about the HBOT call us on (905) 274-2032 or visit our clinic today!


  • Increased Blood Flow
  • Tissue Regeneration & Anti Aging
  • Promote Stem Cell Growth
  • Breathe 100% Oxygen
  • Prevent Virus & Bacteria Infection
  • Enhance Natural Healing


OHIP Covered Conditions:

The Ministry of Health of Canada has recognized Hyperbaric Oxygen Therapy as a suitable treatment for the following conditions, treatment for these conditions are covered under the Ontario Health Insurance Plan (OHIP)

  • Chronic, Non-Healing wounds
    (Example: Diabetic/Venous Ulcers)
  • Compromised skin grafts/flaps
  • Idiopathic Neurosensorial Sudden Hearing Loss (ISSNHL)
  • Decompression Sickness (“the bends”)
  • Osteomyelitis (Bone Infection)
  • Carbon Monoxide/Cyanide Poisoning
  • Gas Gangrene
  • Soft Tissue and Osteo Radionecrosis
    (Radiation damage/injury)
  • Crush Injury
  • Compartment Syndrome
  • Exceptional Blood Loss
  • Intracranial Abscess
  • Thermal Burns
  • Arterial Gas Embolisms

Private Conditions:

Hyperbaric Oxygen Therapy has been shown to treat a wide variety of conditions that are not covered by provincial insurance, these include but are not limited too:

  • Brain Injury/Neurological disorders
    • Traumatic/Anoxic Brain Injury
    • Concussions
    • Chronic Migraines/headaches
    • Neuropathy
    • Stroke
  • Musculoskeletal Injury
    • Muscle strains
    • Ligament damage
  • Chronic Pain
    • Fibromyalgia
    • CRPS (Formally RSD)
  • Inflammation
    • Crohn’s Disease
    • Rheumatoid Arthritis
  • Sport related injuries
    • Broken Bones
    • Concussions
    • Post-op surgical repairs
    • Athletic recovery
  • Viral infections
  • Anerobic Bacteria
  • Mold Toxicity
  • Ulcerative colitis
  • Chronic Fatigue
  • Multiple Sclerosis
  • COVID-19
    • COVID-19

These are not all the conditions HBOT has been proven to treat, if you don’t see a condition you would like more information about please call or contact us.


Under Pressure is equipped with 8 Sechrist 3600E chambers.

These chambers are state-of-the-art, utilizing a unique automated pressurizing process. This allows the chambers to pressurize more consistently, meaning a smoother, quieter experience for the patient.

Each Chamber is equipped with its own 24’ Smart Tv. During treatment patients are able to stream a TV Show/Movie (Netflix, Amazon Prime, YouTube available) if they wish.


  • How long does a treatment last?

    Treatments are typically measured by how long a patient is going to be at the desired pressure that is prescribed by a physician. Why? Patients are treated at different pressures and pressurize at different rates, making those periods differ between patients while the time at the desired pressure is always constant. In that respect, treatments last anywhere from 45 to 90 minutes, with the more common treatments being at 60 or 90 minutes. To account for the pressurization periods, an additional 15-20 minutes is to be expected with every treatment.

  • What happens when I come in for a consultation?

    Consultations are done with our physicians to ensure that each patient is a viable candidate for treatment. During the consultation, the physician will discuss how the Hyperbaric Oxygen Therapy works, run through all the risks and benefits to HBOT, assess the best course of action pertaining to your specific condition and develop a treatment plan. A patients time here will include constant follow-ups with our physicians to ensure we provide the best care for our patients.

  • How many treatments will I need? And how often?

    The number of treatments required is determined by our physicians during the initial consultation. Different conditions will require different treatment plans, but all plans will typically require treatments be done in series. HBOT has the greatest effect when it is done in the most succession possible. Generally, it is suggested a patient does daily treatments to treat a specific condition.

  • Why are Nautical/Diving terms used?

    The technology that initially developed HBOT chambers was originally developed as a militaristic technology. Navies around the world implemented this technology during the time military divers were introduced because of the need to pressurize constantly and at faster rates. The technology was then picked-up by diving centers as a quick and effective way to courter-act decompression sickness.

  • Are there different types of chambers?

    Yes, generally speaking there are 2 main classifications of chambers. Mono-place (meaning one person) chambers, and group-place chambers. Group-place chambers are able to treat multiple people at once and are effective for patients who may require constant care. Mono-place chambers treat one person at a time and are typically designed in a cylindrical fashion. While styles are different, both types of chambers are able to provide the same treatment and result.


We uphold an atmosphere of professionalism, personal attention, and excellence in care.

  • Having been open since 2008, Under Pressure is the Greater Toronto Area’s Premier Hyperbaric facility.
  • Our highly trained, experienced staff is dedicated to providing the best patient experience
  • State-of-the-art Hyperbaric chambers allow for the most comfortable patient experience while in treatment.
  • Situated in Clarkson Village, steps away from shops, cafes, and restaurants.
  • Easily accessible building with nearby bus/train stops, Handicap accessible, Free parking on site, and close to hotels.

Contact us to learn more about our
Hyperbaric Oxygen Therapy and Our Services

We are a patient driven HBOT treatment facility that strives to provide the best patient experience and treatment for a wide range of conditions with the highest level of professionalism.

Want to speak with us about HBOT and our services?

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Become a Patient

We are here to help! Learn more about our services and scheduling a comprehensive consultation with our trained Hyperbaric Physicians.

*Consultation OHIP covered with medical doctor’s referral

Business Hours

  • MONDAY – FRIDAY 8:00 am to 4:00 pm