Trusted by 150,000+ Users Worldwide

Clinically proven. Developed with healthcare, respiratory, and technology experts.

Behind WellO2 is a team of trusted doctors, professors, and elite trainers who understand how vital breathing is. They work closely with us to deliver safe, effective, and research-backed results.

Man sleeping peacefully on a bed with striped pillows

Prepare for a More Comfortable Night

Many people include breathing exercises as part of their evening routine before bedtime. Slow, controlled breathing combined with warm steam can be a simple way to unwind at the end of the day.

After a busy day, dry indoor air, mouth breathing, or long hours of talking can leave your airways feeling dry or your breathing less comfortable. Taking a few minutes to focus on your breathing can be a simple way to slow down before bed.

WellO2 combines warm steam with guided breathing exercises and adjustable breathing resistance. The resistance naturally encourages slower, deeper breathing while strengthening the inspiratory and expiratory breathing muscles, making it easy to incorporate breathing exercises into your evening routine.

Many people include WellO2 in their evening routine for:

  • Guided breathing exercises before bedtime
  • Inspiratory and expiratory breathing muscle training
  • Daily nasal breathing exercises with the included nasal mask
  • Warm steam in dry indoor environments
  • Supporting nasal breathing before bed
  • People who snore and want to practise nasal breathing
  • Building a consistent evening breathing routine

The Breath Training Tool That Calms Your Nervous System

WellO2 combines warm steam with two-way breathing resistance to support breathing exercises before bedtime. The guided exercises naturally encourage slower, deeper breathing while strengthening the inspiratory and expiratory breathing muscles.

  • Helps open and moisturise the airways

  • Encourages slower, deeper breathing

  • Supports slow, controlled breathing exercises

  • Helps reduce snoring by training airway muscles

  • Easy to use in your nighttime wind-down routine

How WellO2 Prepares Your Body For Rest

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  • Inhale warm steam

    Warm steam helps open and moisturise the airways during breathing exercises.

  • Exhale with resistance

    Breathing against gentle resistance strengthens inspiratory and expiratory breathing muscles while naturally encouraging slower, controlled breathing.

  • Feel the difference

    Make guided breathing exercises part of your evening routine.

Who Can Benefit from Nightly WellO2 Use?

WellO2 is a gentle, safe, and drug-free steam breathing trainer suitable for all ages and everyday use.

WellO2 delivers real, noticeable benefits to:

  • People looking for an evening breathing routine
  • People interested in guided breathing before bedtime
  • People who prefer nasal breathing exercises
  • People spending time in dry indoor environments
  • Anyone interested in respiratory wellness
  • People looking to strengthen their breathing muscles
I suffer from poor sleep as a result of menopause. I found that doing the breathing exercises with WellO2 has helped me achieve a better, deeper sleep more often.”
★ ★ ★ ★ ★
– Morag C., UK
Woman using a WellO2 steam breathing trainer with nasal mask against a blue background

Breathe Better. Train Smarter. Feel the Difference.

The WellO2 Steam Breathing Trainer includes three coloured mouthpieces for comfortable steam inhalation through the mouth. A nasal mask is also included for effective steam breathing through the nose.

Why use a Nasal Mask?

Breathing through the nose naturally filters, warms, and humidifies the air. The WellO2 nasal mask is designed to direct warm steam through the nasal passages during breathing exercises.

Using the nasal mask helps you:

  • Support Nasal Breathing – Directs warm steam through the nasal passages during breathing exercises.
  • Helps Open the Nasal Passages – Exhaling through the nose with gentle resistance helps open the nasal passages as part of your breathing exercises.
  • Strengthens the Upper Airway – Regular training helps tone and support the nasopharyngeal muscles.
  • Encourages Regular Nasal Breathing – Supports incorporating nasal breathing into your daily breathing exercise routine.


Support Nasal Breathing with Warm Steam

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WellO2 MyBreath Smart Mouthpiece

See Real Results with the MyBreath™ Smart Mouthpiece

The MyBreath™ Smart Mouthpiece, used with the WellO2 Steam Breathing Trainer and App, gives you powerful insight into your breathing performance so you can see your progress as your breathing gets stronger.

In just minutes a day, you can measure inhalation and exhalation strength, breathing capacity, and airflow, all key indicators of how well your lungs and respiratory muscles are performing.

The WellO2 App stores your results, tracks improvements, and keeps you motivated with easy-to-follow progress charts and personalised breathing exercises.

No more guesswork, just real, measurable results. Feel the difference, see the data, and breathe better every day.

Start Breathing Better with WellO2 Today!

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  • MyBreath Steam Breathing Trainer - Smarter Breathing, Measurable Results

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Still Have Questions About Sleep and Breathing?

Can WellO2 help me if I snore?

Many people who snore include WellO2 in their evening routine. The nasal mask directs warm steam through the nasal passages while the breathing exercises strengthen the inspiratory and expiratory breathing muscles, including the muscles of the upper airway. WellO2 is designed to support breathing exercises and nasal breathing as part of an evening routine.

Is WellO2 a medical treatment for sleep apnea or other sleep disorders?

No. WellO2 is not a medical device and is not intended to diagnose, treat, or cure any medical conditions. If you suspect sleep apnea or another condition, please consult a healthcare professional.

Does WellO2 support nasal breathing?

Yes. Every device comes with a nasal mask, which allows you to direct warm steam and resistance training through the nose. This can support comfortable nasal breathing as part of your daily breathing exercises.

When should I use WellO2 if I have trouble sleeping?

Many users choose to use WellO2 in the evening before bedtime as part of their wind-down routine. Others incorporate breathing exercises into their morning or daytime routine.

How quickly will I notice a difference?

Some people feel comfort from the steam and breathing exercise right away. But like any form of training, strengthening the breathing muscles takes consistency — just like going to the gym. Many users notice changes after a few weeks of regular use.

Is WellO2 safe to use every night?

Yes. WellO2 is designed for daily use. Each session takes just a few minutes, and you can adjust steam temperature and resistance to your comfort level. For the best results, we recommend training twice a day, especially during the first month, to help build a consistent routine.