
Clear Your Airways from Pollen, Dust, and Irritation
Nasal congestion, itchy airways, and sinus pressure? Clear it all with warm steam and lung-strengthening breathing in just 5 minutes a day. Join over 150,000 WellO2 users breathing easier, no matter what season.
150,000+ users
over £50
Proven

Seasonal Pollen Shouldn’t Control Your Breathing
Every spring and summer, millions of people feel the same: congested, foggy, and struggling to breathe deeply through their nose due to congestion. Pollen season can leave your sinuses swollen, your throat irritated, and your lungs feeling tight, making even a deep breath feel like a challenge.
Whether it’s a blocked nose, scratchy cough, or seasonal shortness of breath, these issues aren’t just annoying; they impact your energy, focus, and sleep.
Pollen season shouldn’t take over your life.
That’s why we created a proven, natural way to soothe your airways and support your breathing from the inside out — no matter what the season.
WellO2 provides relief for:
- Nasal congestion and stuffy sinuses
- Pollen-triggered coughs and wheezing
- Dry, irritated airways
- Scratchy throat from allergens
- Trouble sleeping due to blocked breathing
- Seasonal fatigue and breathlessness
You deserve to breathe clearly, even when the pollen count is high.
The Natural Solution to Spring & Summer Breathing Challenges
WellO2’s revolutionary and science-backed Nordic Steam Breathing System™ uses warm, soothing steam and gentle resistance to open your airways, strengthen your lungs, and ease seasonal congestion without medication.
-
Loosens and clears mucus
-
Hydrates dry, irritated airways
-
Strengthens lungs and nasal breathing
-
Reduces pollen or dust-triggered breath tightness
-
100% drug-free & clinically tested
Developed by Finnish Healthcare, Wellness, and Technology Experts.
Clinical studies have proven show lung strength improves by up to 20% in 4 weeks
How WellO2 Helps Fight Pollen Season Congestion
-
Inhale warm steam
Soothes sinuses and hydrates airways from nose to lungs
-
Exhale with resistance
Trains lungs and helps clear out trapped mucus and irritants
-
Breathe better daily
Supports easier breathing, stronger lungs, and faster recovery during seasonal flare-ups

Who Can Benefit from WellO2?
- People with seasonal pollen symptoms
- People with blocked noses and stubborn sinus pressure
- Anyone who wakes up congested
- Anyone who snores
- Throat irritation from post-nasal drip
- People who are fatigued or breathless during spring/summer
- Voice users affected by seasonal dryness or congestion
- Older adults with weak airway defenses
Active individuals that would like to breathe better outdoors
Trusted by 150,000+ People Worldwide
Clinically proven. Doctor backed. Life-changing for people during pollen season and beyond.
Behind WellO2 is a team of trusted doctors, professors, and elite trainers who know how vital breathing is and who work closely with us to deliver safe, effective, and research-backed results. See the full list of our Medical Advisory Board here.
Testimonials
10/10 from me
It’s amazing how quickly you can improve your breathing in just a short space of time.

ADELE P., UK
I feel fantastic!
I was reluctant to try something as simple as steam for my breathing issues, having had 43 years of poor breathing. But from the first use, I knew I had made the right choice with WellO2.

NIKOLA K., UK
Thank you for a brilliant product!
As a professional vocalist, having had a couple bouts of sinusitis and doing some dusty house renovations for the past few months, I feel WellO2 not only cleanses my respiratory system, but is also strengthening it.

MIKE S., UK
Thank you WellO2!
WellO2 enables me to get a really good night's sleep, which is incredible after looking for a product for so long, which would help me feel refreshed and wake up in the morning with ease.

JOSEPH, UK
It is an excellent tool for relaxation and mindfulness practices.
Not only does WellO2 enhance lung function, but it also promotes relaxation and reduces stress.

ADAM T., UK
Tested
over £50
Warranty

WellO2 Breathing Trainer
Includes nasal mask attachment for targeted nasal support
Share










Still Wondering if It Would Work For You?
What is WellO2?
WellO2 is a lung-strengthening breathing exercise device that combines inspiratory and expiratory counter pressure breathing and the inhalation of warm steam. The device improves and maintains the condition of the respiratory system.
How does it work?
The device is used to perform guided respiratory exercises. The user first exhales into the device and then inhales the air back through it. During this process, the device provides gentle resistance for both exhalation and inhalation, while also delivering warm steam into the airways. This resistance training strengthens the respiratory muscles, and the warm steam helps open and moisturise the airways.
Will this help with sinus pressure or nasal congestion?
Everyone experiences occasional breathing difficulties, often triggered by common irritants such as flu symptoms, pollen, urban dust, strong odors, or dry air.
WellO2 training offers a swift and effective relief for a range of respiratory issues, including coughing, sneezing, a runny nose, sinus discomfort, irritation, and shortness of breath. Its combination of resistance training and warm steam helps loosen mucus, while using a nasal mask can quickly clear nasal congestion.
The health of the respiratory tract's mucous membrane is crucial in managing these symptoms. A healthy mucous membrane not only diminishes symptoms but also protects against pathogens. WellO2 training moisturizes and cares for this mucous membrane, enhancing its ability to ward off external irritants and pathogens. Therefore, regular WellO2 exercises are beneficial for both preventing and easing respiratory challenges, whether they're due to a common cold or pollen season.
Is it safe to use every day during pollen season?
Regular WellO2 training increases the moisture balance of the respiratory tract's mucous membrane. A well-conditioned mucous membrane and functioning cilia protect the body from allergens and thus reduce the intensity of allergy symptoms. It is advisable to start WellO2 training well before the spring pollen season, so the respiratory tract's mucous membrane is in the best possible condition by then.
How quickly will I notice a difference?
Many users report breathing feels easier within the first few sessions. In a clinical study, participants increased their inspiratory muscle strength by up to 20% after 4 weeks of regular use.
Kuronen, I., Heinijoki, J. & Sovijärvi, A. (2023) Effects of Low Workload RespiratoryTraining With Steam Inhalation on Lung Function in Stable Asthma: a controlled clinical study. Clinical Physiology and Functional Imaging, 44, 100–111
Does the WellO2 device have a warranty?
Yes, the WellO2 device comes with a 24-month warranty.
Is there any research behind it? Does the product really work?
Yes, WellO2 is backed by clinical studies and trusted by over 150,000 users worldwide. You can read more on our clinical studies
Is it for me? I have long-term airway problems
WellO2 is designed to support breathing for people with a range of challenges, like age-related issues, mild respiratory concerns, or breathing discomfort from airway problems.
However, it’s always a good idea to check with your healthcare provider before using it if you have specific medical conditions.
Is it safe for children?
Yes, WellO2 is safe for children to use under adult supervision.
The device is designed to be simple and gentle, making it suitable for the whole family.
How do you clean it?
Cleaning WellO2 is easy!
WellO2 device has its own cleaning program for hygienic use. Simply fill the device with water, and let the device clean itself with the cleaning program!
Detailed cleaning instructions are included in the product manual.
Don't Let Pollen Season Block Your Breath
Clear airways. Deeper breathing. Better sleep. Naturally.
Try WellO2 and feel the difference in days.