• Fill the device with drinkable water and select a desired temperature

    1. Fill and power on

    Add drinkable water and turn on the WellO2 device. Start with the lowest temperature.

  • Adjust the resistance

    2. Set resistance

    Begin at resistance level 0. You can increase it gradually over time.

  • Exhale into the device and exhale from the device

    3. Breathe

    Exhale and inhale through the WellO2 device using either the nasal mask or mouthpiece. 1–10 repetitions, 2–3 rounds per session.

  • Repeat daily

    4. Repeat daily

    Use morning and evening for best results. You can also use WellO2 more often if needed – there’s no strict upper limit.

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  • Learn the Basic WellO2 Breath

    • The core of WellO2 training is one complete breath cycle: One WellO2 breath = one exhale and one inhale through the device.

    • • Always exhale first to generate steam in the device

    • • Inhale immediately after – slowly and deeply

    • • Keep your breathing smooth and steady, not forced

    • • Start with 1–5 full breath cycles and gradually increase to 10

    • • Inhale through your mouth or nose, based on your training goal and comfort

WellO2 App

Use the WellO2 App for Breathing Training

Let the app guide your routine.

The WellO2 app offers structure and support as you build your daily breathing practice – whether you're just starting or continuing long-term training.

• Guided exercises for different needs
• Progress tracking with the WellO2 MyBreath smart mouthpiece
• Personal training log to follow your development

Available worldwide:

Download on Google Play >>

Download on Apple Store >>

WellO2 MyBreath Smart Mouthpiece

Track Your Breathing Progress with WellO2 MyBreath

Looking to take your WellO2 training to the next level? MyBreath is a smart mouthpiece accessory used with the WellO2 breathing trainer and app. It enables guided breathing tests that help you better understand how your lungs are functioning. You can track:

Breathing power – how efficiently your respiratory system performs in everyday life
Breathing capacity – how much of your lung volume you're using
Airflow – how freely air moves through your airways

Test results are saved in the WellO2 app, so you can follow your progress over time and stay consistent with your training.

Read More about MyBreath

WellO2 Training Tips by Purpose

Support for Breathing Discomfort

WellO2 training may help ease irritation in the airways, loosen mucus, and support more comfortable breathing during or after seasonal challenges.

How to train:

• Start with resistance level 0 (the lowest setting)
• Set the temperature to medium or high
• If your nose feels blocked, use the WellO2 nasal mask
• Breathe in and out 1–10 times per round – take breaks if needed
• Repeat 1–3 rounds per session, morning and evening
• Always listen to your body. Stop if breathing becomes difficult or symptoms worsen

Do not use the device if you have a high fever.

Support for Sleep and Snoring

WellO2 training may help improve airflow through the nose, reduce mouth breathing, and relieve dryness in the airways. The warm steam and steady breathing rhythm can also help relax your body and mind before bedtime.

How to train:

• Use the nasal mask in the evening to support nasal breathing
• Start with low resistance (level 0) and a low or medium temperature
• Perform 1–10 breathing cycles per round – take breaks if needed
• Repeat 2–3 rounds, depending on comfort
• You can also train in the morning if your airways feel dry

For best results, aim to train twice daily.

Support for Sports and Active Lifestyles

WellO2 training supports more efficient breathing, help prepare your lungs for physical effort, and promote recovery. Many users incorporate it into their warm-up and cool-down routines as part of their training plan.

If you’re using the WellO2 MyBreath smart mouthpiece, you can also track your breathing progress and follow changes over time to stay consistent with your routine.

How to train:


• Use before and after physical activity
• Start with resistance level 0 and increase gradually over time
• Do 1–2 sessions per day during the first month
• Continue with 2–3 sessions per week to maintain the routine
• Allow 1–2 rest days per week, as with other muscle training

Breathing Support for Voice Use

WellO2 training may help warm up your voice before speaking or singing and support recovery afterward. The warm steam can moisturize your vocal cords and ease dryness, while steady breathing exercises may help reduce vocal strain and promote relaxation.

How to train:

• Use before and after extended voice use
• Start with low resistance and a low temperature
• Perform 1–10 breathing cycles, repeat once or twice
• Daily use is recommended for consistent support

Gentle Breathing Support for Everyday Life

WellO2 training can offer gentle support for everyday breathing. It may help ease discomfort, clear mucus, and support overall wellbeing – even for those with limited mobility or when physical activity feels difficult.

If holding the device feels heavy, simply place it on a table and use the extension hose to train comfortably while seated.

How to train:

• Use low resistance (level 0) and a low or medium temperature
• Perform 1–10 breathing cycles per round, repeat 1–2 times
• Take breaks as needed
• Light daily use may help maintain comfortable breathing in daily life

Building Progress Over Time

WellO2 training is most effective when done regularly. You can gradually increase resistance as your comfort and confidence grow.

Suggested training rhythm:

• Weeks 1–2: Start with resistance level 0
• Weeks 3–4: Increase resistance slightly if it feels comfortable
• Weeks 5–6: Continue regular training or move to a maintenance routine (2–3 times per week)

Consistent use brings the best results. Always adjust resistance gradually to match your ability.

With regular practice, many users report:

• More stable and controlled breathing
• Stronger breathing muscles over time
• Better comfort during daily speaking or activity
• Easier recovery after physical or breathing challenges
• A sense of calm through deeper breathing rhythms

If you're using the WellO2 MyBreath accessory, you can also follow your progress through guided breathing tests in the app and track how your breathing power develops over time.

WellO2 Tips & Troubleshooting

Steam not strong enough? Exhale into the device a few times before your first full breath to generate more steam.

Steam feels too hot? Use a nose cream to protect sensitive skin or lower the temperature setting.

Nasal mask uncomfortable? Begin with shorter sessions and adjust the position until it feels comfortable.

Feeling congested? Try starting with nasal exhale only, or switch to mouth breathing until nasal use feels easier.

Feeling light-headed? Breathe slowly, reduce repetitions and resistance, and take breaks as needed.

Resistance feels too hard? Turn the resistance dial back slightly to a more comfortable level.

Device feels heavy? Place WellO2 on a table and use the extension hose to train comfortably while seated.

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Real people. Real results.

I regularly inhale warm steam, including to the upper respiratory tract with the help of the nasal mask that comes with the device. This is especially important during the flu season when the risk of getting sick is higher. I have managed to stay exceptionally healthy for the last three training seasons. Using Wello has been one of my key preventative ways to avoid getting sick.

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KRISTA PÄRMÄKOSKI

Finnish National Team Cross-Country Skier

I now take my WellO2 device with me everywhere in the world. I’ve had it for about a year. No matter the temperature or humidity – if my voice feels a bit dry or rough, just a few minutes with this device, and I’m singing like a Vienna Boys' Choir member.

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BERNIE SHAW

Professional Singer, Uriah Heep

I was surprised by how pleasant it felt to breathe with the WellO2 device. The nasal mask, in particular, was very helpful. I find the device easy and comfortable to use.

While running, I noticed how much easier breathing felt. The improvement in oxygen intake becomes evident when you don’t get out of breath as quickly.

I would recommend the WellO2 device to anyone who breathes, but especially to those who experience respiratory issues or frequently get sick. It’s also great for families with children!

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HEIDI S

After a few months of WellO2 training, my breathing strength and capacity improved by about 20%, reaching the same level as a healthy, athletic 30-year-old Jari before developing asthma at work. I am forever grateful to WellO2.

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JARI A

I have noticed that my breathing has overall become stronger and clearer with the use of WellO2. I use it at least twice a day, in the morning and evening. WellO2 not only exercises the lungs but also all the other muscles needed for voice production, including the side and abdominal muscles. Considering the good results, the time investment is not very much. I always have it with me on tours.

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MARKO HIETALA

Professional Singer

I've slept better since I started using the device, and I also feel more refreshed. I used to be ashamed to constantly clear my throat around people, but now I feel relieved. It’s a good device, I certainly give it a ten out of ten. Good and easy!

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ANJA V

I bought my WellO2 and I noticed a significant improvement in my breathing after the very first use. Back when I was a professional athlete, I even took my WellO2 with me on competition trips.

In my opinion, WellO2 is suitable for everyone. It helps your body relax in the evenings, and most importantly, it’s great for easing symptoms when a cold strikes, reducing the severity of aftereffects compared to not using WellO2.

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MARIA HUNTINGTON

Former Track and Field Heptathlete

Using the nasal mask that comes with the device in the evening clears my nose completely, making it much easier to go to sleep. Since starting with WellO2, I haven’t needed to use nasal drops anymore.

WellO2 training has greatly helped my instrument playing. It has opened up my airways, relaxed my muscles, and activated my intercostal muscles. Additionally, it has made my breathing deeper, which allows for a more relaxed and resonant sound from my instrument.

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MIKKO M

Trombone and Tuba Player

I have used the WellO2 device for several purposes. I have mild sleep apnea, and I also use it for general relaxation, which it has been very effective for. My sleep quality has improved. I can calm down a bit better before bed, sleep a little deeper, and simply feel more refreshed in the morning.

It seems that the breathing exercises have brought small but noticeable benefits quite quickly. During dry indoor air conditions, the device has also helped moisturize my airways and improved the condition of my mucous membranes.

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OSKARI V

We’ve partnered with WellO2 since 2017. Our members have used the device with great results, reporting easier breathing and clear benefits.

In 2020, we began a commercial collaboration and granted the right to use our logo. WellO2 has since produced scientific evidence supporting the device’s effectiveness.

We trust in the product and hope it will help people with respiratory conditions internationally. As a member of EFA, we continue to advocate for better breathing for all.

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MERVI PUOLANNE

Organization Manager
The Organisation for Respiratory Health in Finland