During an IHHT session, you’ll relax in a comfortable reclining chair while wearing an oxygen mask. Over approximately 40 minutes, you’ll breathe in alternating cycles of low-oxygen air (hypoxia: 11–16% O₂) and either high-oxygen air (hyperoxia: approx 35% O₂) or normal air (normoxia: 21% O₂). Each cycle typically lasts between 3 to 5 minutes.

The experience is deeply calming—many people become very relaxed or even fall asleep. I always encourage clients to settle in and switch off as much as possible. Feel free to bring headphones and listen to your own soothing music to enhance the relaxation.

You might notice subtle differences in how each oxygen cycle feels. For example, the hypoxic air often feels cooler, while the hyperoxic air may feel slightly warmer. This is completely normal and something you’ll quickly adapt to. Most clients say the high-oxygen phases feel especially relaxing and leave them with a deep sense of calm and well-being that lasts for the rest of the day.

IHHT is ideal for busy individuals who want to optimise their energy, performance, and resilience—without spending hours in the gym. If you’re a time-strapped professional, entrepreneurial parent juggling multiple demands, or just concerned about long-term health and wellbeing, IHHT offers a smart, science-backed solution.

This training is especially helpful if you:

• Feel drained or burnt out despite a healthy lifestyle
• Struggle with stress, brain fog, or poor recovery
• Want to boost your physical and mental performance as you age
• Are looking for a time-efficient way to support your physical and mental health

IHHT is also a powerful tool for prevention—helping you stay ahead of fatigue, chronic conditions, and age-related decline so you can keep showing up at your best.

In my office I have seen people make improvements in health and wellbeing with a diverse set of symptoms. IHHT has helped with, anxiety reduction, sleep improvement,  maintenance of fitness while injured, as well as for help with symptoms of peri-menopause.

Yes, IHHT is a safe an non-invasive process. It is also monitored with a pulse oximeter so your heart rate and blood oxygen levels will be tracked, ensuring the training is at the correct level and within comfortable levels. 

While IHHT is shown to be a safe and natural approach, there are circumstances under which it is contraindicated. Acute illness, hemoglobin-related blood disorders such as sickle cell disease, heart valve issues, infection of the upper respiratory tract, fever and the first trimester of pregnancy.

10 sessions is a good start point, for an already healthy person, to help your body promote the adaptation and renewal process.

The number of sessions is also determined by your state of health at the beginning of the training. Each body is unique and there are trillions of mitochondria in the body so their renewal, in order to achieve your desired health improvements, can take 30 sessions.