Trusted by 150,000+ Users Worldwide

Clinically proven. Doctor recommended. Life changing for real people.

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

Snoring. Mouth Breathing. Restless Nights.

If you’ve ever laid awake feeling your breath gets shallow or your chest tightens with every inhale, you’re not alone.

Whether it’s from stress, anxious feelings, congestion, or poor breathing habits, sleep problems often start with the way we breathe.

When your nervous system is stuck in overdrive, it becomes harder to fall asleep, stay asleep, or wake up feeling rested.

WellO2 is a natural solution that helps your body shift into calm mode, combining mindful breathing with warm steam to ease both your airways and your mind.

WellO2 supports:

  • Slower, deeper breathing before bed
  • Reduces congestion to help nasal breathing
  • Relaxation of tight chest and airways
  • Reduced nighttime congestion and snoring
  • Soothing of dry or irritated breathing passages
  • Lowered stress and nervous system tension from better, deeper breathing
  • More restful, uninterrupted sleep

The Breath Training Tool That Calms Your Nervous System

WellO2 combines warm steam and two-way resistance breathing to help you relax your mind and body, open your airways, and prepare for deeper rest—without medication or side effects.

  • Opens and hydrates airways for easier breathing

  • Deepens breathing and reduces tension

  • Calms nervous system before sleep

  • 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

    Breathe in the warm, soothing steam from WellO2. The gentle vapor helps open your airways, loosens mucus, and promotes easier, deeper breathing. Every inhale delivers comfort and relief straight to your lungs.

  • Exhale with resistance

    Release tension and congestion with every breath out. As you exhale, your airways clear naturally, supporting your respiratory health and helping you feel better. Each breath encourages calm and relaxation.

  • Feel the difference

    Notice the change as breathing becomes easier and more natural. WellO2 helps improve sleep, energy, and overall wellbeing by restoring your body’s ability to breathe fully. Enjoy clearer airways and a renewed sense of vitality in just minutes a day.

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 who struggle to fall asleep or stay asleep
  • Light sleepers who wake up congested or tense
  • Snorers or mouth-breathers looking to improve airflow
  • Anyone tired of waking up tired
  • Those looking to improve their breathwork and to feel more calm before bedtime
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, promoting healthier lungs and more efficient oxygen exchange. Using a nasal mask with your WellO2 device helps you:

  • Clear nasal congestion – enhance your breathing exercises by focusing airflow through the nasal passages to clear congestion.
  • Support Nasal Health – Encourages natural nasal breathing to open and clear nasal passages.
  • Strengthens Upper Airway – Regular training helps tone and support the naso-pharyngeal muscles, improving airflow during rest and sleep.


Clear Nasal Breathing for Easier, Fuller Breaths.

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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 lungs get stronger and your airways clearer.

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!

  • WellO2 Steam Breathing Trainer

    WellO2 Steam Breathing Trainer

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    WellO2 Steam Breathing Trainer

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  • Ultimate Breathing Combo: WellO2 Steam Breathing Trainer and MyBreath™ Smart Mouthpiece

    Ultimate Breathing Combo: WellO2 Steam Breathing Trainer and MyBreath™ Smart Mouthpiece

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    Ultimate Breathing Combo: WellO2 Steam Breathing Trainer and MyBreath™ Smart Mouthpiece

    £199.00 GBP
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Still Have Questions About Sleep and Breathing?

Can WellO2 help me if I snore?

WellO2 training combines warm steam with adjustable breathing resistance to exercise the muscles that support natural breathing. Using the WellO2 nasal mask also engages the small muscles of the nose, throat, and larynx, which play a role in keeping the airways open. Many users who snore include WellO2 in their evening routine, as the nasal mask can help open a stuffy nose and support nasal breathing before bedtime.

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 more comfortable nasal breathing, which is important for healthy sleep and recovery.

When should I use WellO2 if I have trouble sleeping?

Many people use WellO2 in the evening as part of their wind-down routine, as the warm steam and slower breathing exercises can feel calming. Others prefer using it during the day to support breathing fitness. You can choose the time that best fits your 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.

Breathe Better. Sleep Deeper. Wake Refreshed.

Better nights begin with better breathing. Let WellO2 help you wind down, fall asleep, and stay asleep, naturally.

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