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110L Oxygen Can with Valve, Mask and Tube

110L Oxygen Can with Valve, Mask and Tube

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  • ✔️ Delivers 110 litres of concentrated supplemental oxygen
  • ✔️ Complete kit includes valve, face mask, and tube
  • ✔️ Eases mild breathlessness from exertion or altitude
  • ✔️ Suitable for adults seeking portable oxygen support
  • ✔️ Larger capacity than standard pocket-sized oxygen cans

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What Is a Portable Oxygen Can and How Can It Help You?

 

Feeling short of breath after exertion, at altitude, or during recovery can be unsettling. The portable oxygen can from Clear O2 offers a convenient, over-the-counter way to access supplemental oxygen whenever you need it. Each 110-litre canister comes complete with a valve, face mask, and connecting tube — everything you need in one ready-to-use kit, priced at £103.49.

Oxygen makes up roughly 21% of the air we breathe under normal conditions. When your body is under stress — whether from illness, physical exertion, or reduced atmospheric pressure at altitude — that ambient level may not be enough to keep you feeling comfortable. Supplemental oxygen temporarily increases the concentration of oxygen reaching your lungs, helping to ease breathlessness and support recovery. If you are managing other health concerns alongside breathlessness, our First Aid range includes additional products that may be useful to have on hand.

 

How Does the Clear O2 Oxygen Can Work?

 

The mechanism is straightforward. When you press the valve, the canister releases a flow of concentrated oxygen through the tube and into the face mask. You breathe this in slowly and steadily, and the higher-than-ambient oxygen concentration passes across the alveolar membrane in your lungs into your bloodstream. This can temporarily raise blood oxygen saturation, reducing the sensation of breathlessness.

  • Press the valve to release oxygen at a controlled flow rate
  • Oxygen travels through the tube to the face mask
  • You inhale the concentrated oxygen through the mask
  • Oxygen crosses the lung membrane into the bloodstream
  • Blood oxygen saturation rises temporarily, easing breathlessness

 

Who Should Consider Using a Portable Oxygen Can?

 

This product is designed for adults who experience mild, temporary breathlessness or fatigue in specific situations. It is not a replacement for prescribed medical oxygen therapy, and anyone with a diagnosed respiratory condition should speak to their GP before use.

It may be suitable for:

  • People experiencing breathlessness after physical exertion
  • Travellers at high altitude seeking temporary relief from reduced oxygen levels
  • Individuals recovering from illness who feel fatigued or short of breath
  • Athletes or active individuals wanting supplemental oxygen during recovery

 

How Does the Clear O2 110L Can Compare to Smaller Oxygen Canisters?

 

Feature Clear O2 110L (This Product) Typical Small Canister (approx. 10–15L)
Oxygen volume 110 litres 10–15 litres
Includes mask and tube Yes Often not included
Number of sessions Multiple extended sessions 1–3 short sessions
Value for extended use Higher value per litre Lower value per litre

 

Is the Clear O2 Oxygen Can Clinically Suitable and How Should It Be Stored?

 

The Clear O2 110L portable oxygen can is an over-the-counter product intended for supplemental use only. It is not classified as a medical device for treating diagnosed respiratory conditions such as COPD or asthma. If you have an underlying lung condition, heart disease, or any other chronic illness, always consult your GP or pharmacist before using supplemental oxygen products.

Store the canister upright in a cool, dry place, well away from heat sources, open flames, and direct sunlight. Oxygen supports combustion, so it must never be stored near anything flammable. Keep it out of reach of children at all times. If you are also monitoring a chronic condition at home, our Electrical Health and Diagnostic range includes pulse oximeters and other tools that can help you track your oxygen levels.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Clear O2 110L Oxygen Can with Valve, Mask and Tube specifications
Treatment category Supplemental oxygen / respiratory support
Mechanism of action Delivers concentrated oxygen via inhalation to temporarily raise blood oxygen saturation
Effective for Mild breathlessness, exertion recovery, altitude-related breathlessness
Suitable for Adults
Active ingredient Oxygen (99%+)
Pack size 110 litres
UK classification General Sale / OTC
Preparation Pressurised gas canister
Route of administration Inhalation via face mask and tube

Specifications of Clear O2 110L Oxygen Can with Valve, Mask and Tube

 

What Is the Clear O2 Oxygen Can and What Is It Used For?

 

The Clear O2 110L Oxygen Can is a pressurised canister containing concentrated oxygen, supplied with a valve, face mask, and connecting tube. It is intended for supplemental inhalation use in adults who experience mild, temporary breathlessness or fatigue. Common situations where people reach for a product like this include recovery after physical exertion, travel to high-altitude destinations, and general feelings of tiredness or low energy linked to reduced oxygen intake.

It is important to understand that this product is not a treatment for any diagnosed medical condition. It does not replace prescribed oxygen therapy, and it should not be used as a first-line response to a medical emergency. If you or someone around you experiences sudden, severe breathlessness, chest pain, or loss of consciousness, call 999 immediately.

 

What Do You Need to Know Before Using the Clear O2 Oxygen Can?

 

Before using this product, read the following carefully. Supplemental oxygen is generally well tolerated in healthy adults at OTC use levels, but there are situations where caution is essential.

Do not use this product if you:

  • Have been diagnosed with COPD, hypercapnic respiratory failure, or any condition where high-flow oxygen is contraindicated
  • Are under 18 years of age without medical supervision
  • Are using it near open flames, lit cigarettes, or any ignition source — oxygen supports combustion
  • Have been advised by a clinician to avoid supplemental oxygen

Use with caution if you:

  • Have a diagnosed respiratory condition such as asthma or COPD — speak to your GP first
  • Are pregnant or breastfeeding — seek medical advice before use
  • Have a heart condition or cardiovascular disease

Known interactions:

  • No clinically significant drug interactions are known for supplemental oxygen at OTC concentrations in otherwise healthy adults
  • In patients on certain respiratory medications, high-concentration oxygen may affect respiratory drive — always seek GP advice if you take regular inhalers or respiratory medicines

 

How Should You Use the Clear O2 Oxygen Can?

 

Using the canister correctly ensures you get the most from each session and reduces the risk of discomfort. Follow these steps carefully each time you use it.

  1. Remove the canister from its packaging and inspect it for any visible damage before use
  2. Attach the connecting tube securely to the valve outlet on the canister
  3. Connect the other end of the tube to the face mask
  4. Place the mask over your nose and mouth, ensuring a comfortable seal
  5. Press the valve gently to begin the flow of oxygen
  6. Breathe in slowly and steadily through the mask — do not hyperventilate
  7. Use for the recommended duration per session as stated in the product instructions
  8. Release the valve to stop the flow when finished, and store the canister upright
Indication Age Group Suggested Session Duration Frequency
Post-exertion breathlessness Adults As needed, short sessions As required
Altitude-related breathlessness Adults Short sessions as symptoms arise As required
General fatigue / low energy Adults Short sessions As required, not continuously

If you are also managing pain or discomfort alongside breathlessness, our Pain Relief range may offer additional support for your recovery.

 

What Are the Possible Side Effects of the Clear O2 Oxygen Can?

 

Side effects from short-term supplemental oxygen use at OTC levels are uncommon in healthy adults. However, it is worth knowing what to look out for.

Common side effects:

  • Dry or slightly irritated throat or mouth from the oxygen flow
  • Mild headache if used excessively or for prolonged periods

Less common side effects:

  • Dizziness or light-headedness, particularly if breathing too rapidly
  • Nausea in sensitive individuals
  • Skin irritation around the mask contact area with prolonged use

If you experience any unexpected or worsening symptoms during or after use, stop immediately and seek medical advice. Serious adverse effects from OTC supplemental oxygen are rare but should not be ignored.

 

How Should You Store the Clear O2 Oxygen Can?

 

Correct storage is essential for both safety and product longevity. Oxygen is a highly reactive gas that supports combustion, so storage conditions matter.

  • Store upright in a cool, dry place at room temperature
  • Keep away from heat sources, radiators, and direct sunlight
  • Never store near open flames, lit candles, or smoking materials
  • Keep out of reach of children and pets
  • Do not puncture, incinerate, or attempt to refill the canister
  • Check the expiry date before each use and do not use beyond it

If you are travelling with the canister, check airline and transport regulations before departure, as pressurised canisters may be subject to restrictions. For travel health essentials, our Travel range has a variety of products to keep you prepared on the go.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy a portable oxygen can online in the UK?

You can buy the Clear O2 110L portable oxygen can directly from Cured Pharmacy, a GPhC-registered UK online pharmacy. No prescription is required, and it is dispatched to UK addresses. It is available at £103.49 and includes the valve, mask, and tube as a complete kit.

How does a portable oxygen can work in the body?

When you inhale from the canister, the concentrated oxygen passes through your airways and across the alveolar membrane in your lungs into your bloodstream. This temporarily raises your blood oxygen saturation, which can ease the sensation of breathlessness. The effect is short-term and does not treat any underlying cause of low oxygen levels.

How do I use the Clear O2 oxygen can step by step?

Attach the tube to the valve, connect the mask to the other end of the tube, and place the mask over your nose and mouth. Press the valve to release oxygen and breathe in slowly and steadily. Release the valve when you have finished your session and store the canister upright in a safe location.

How many uses does a 110L oxygen can provide?

The number of sessions depends on how long each session lasts and the flow rate used. A 110-litre canister provides significantly more sessions than smaller 10–15 litre canisters, making it a more economical choice for regular or extended use. Refer to the product instructions for specific guidance on session duration.

What is the best way to use a portable oxygen can for breathlessness?

Sit or stand in a comfortable position, apply the mask securely over your nose and mouth, and breathe slowly and steadily rather than taking rapid shallow breaths. Short, calm inhalation sessions are more effective than prolonged continuous use. If breathlessness is severe, persistent, or unexplained, seek medical advice rather than relying on supplemental oxygen alone.

Are there any side effects from using a portable oxygen can?

Side effects are uncommon at OTC use levels but can include a dry or irritated throat, mild headache from excessive use, and occasional dizziness if you breathe too rapidly. Skin irritation around the mask area is possible with prolonged use. Stop use and seek advice from a pharmacist or GP if you experience any unexpected symptoms.

Who is the Clear O2 110L oxygen can suitable for?

It is suitable for adults experiencing mild, temporary breathlessness related to exertion, altitude, or general fatigue. It is not suitable for children without medical supervision, or for people with COPD or other conditions where supplemental oxygen may affect respiratory drive. Always speak to your GP if you have a diagnosed respiratory or cardiovascular condition before use.

Can I use a portable oxygen can for altitude sickness?

Supplemental oxygen can provide temporary relief from mild altitude-related breathlessness and light-headedness by increasing the oxygen concentration you inhale. It is not a treatment for severe acute mountain sickness, and descent to a lower altitude remains the most effective intervention for serious symptoms. If you are planning high-altitude travel, check our Travel range for additional health essentials.

What are the alternatives to a portable oxygen can?

Alternatives include smaller disposable oxygen canisters (typically 10–15 litres), which are more portable but provide fewer sessions. For people with diagnosed conditions requiring ongoing oxygen therapy, prescribed home oxygen concentrators are the clinical standard. The Clear O2 110L canister sits between these options, offering more volume than a pocket-sized can without requiring a prescription.

How long does a 110L oxygen can last?

The duration depends entirely on how frequently and for how long you use it per session. Used in short bursts as needed, a 110-litre canister can last considerably longer than smaller alternatives. Continuous or prolonged use will deplete it more quickly, so it is best reserved for targeted sessions rather than constant inhalation.

Is it safe to use a portable oxygen can every day?

Occasional daily use for specific situations such as post-exercise recovery is generally considered safe for healthy adults. However, if you find yourself needing supplemental oxygen every day to manage breathlessness, this may indicate an underlying health issue that warrants medical investigation. Speak to your GP if you are relying on it regularly. You might also find it helpful to monitor your oxygen levels using a pulse oximeter from our Electrical Health and Diagnostic range.

Can I use the oxygen can if I have asthma?

People with asthma should consult their GP or pharmacist before using supplemental oxygen products, as the appropriate management of asthma-related breathlessness involves prescribed inhalers rather than OTC oxygen canisters. Supplemental oxygen is not a substitute for your prescribed asthma treatment. Using it without medical guidance could delay appropriate care.

What happens if I use too much oxygen from the can?

Excessive inhalation of supplemental oxygen in healthy individuals can cause mild headache, dizziness, or nausea. In people with certain respiratory conditions such as COPD, high-concentration oxygen can suppress the respiratory drive, which is a serious concern. Always follow the usage instructions and do not use the canister continuously for extended periods.

Is the Clear O2 oxygen can safe to use during pregnancy?

There is no specific evidence that short-term supplemental oxygen from an OTC canister is harmful during pregnancy, but you should always seek advice from your midwife or GP before using any new product while pregnant. Breathlessness is common in pregnancy and is usually benign, but persistent or severe breathlessness should always be assessed by a healthcare professional.

What are the latest findings on supplemental oxygen for recovery and performance?

Research into supplemental oxygen for athletic recovery and performance is ongoing, with some studies suggesting short-term benefits in reducing perceived exertion and aiding recovery after intense exercise. However, the evidence base for OTC supplemental oxygen canisters specifically remains limited compared to clinical oxygen therapy. Current NHS guidance focuses on supplemental oxygen for medical indications rather than performance enhancement.

How Should You Use the Clear O2 110L Oxygen Can?

Before using the canister for the first time, inspect it carefully for any signs of damage, leakage, or tampering. Do not use the product if the canister appears dented, corroded, or if the valve is damaged. Ensure you are in a well-ventilated area away from open flames or ignition sources before beginning.

What Is the Correct Dose of the Clear O2 Oxygen Can?

There is no fixed "dose" in the pharmaceutical sense for supplemental oxygen from an OTC canister. Instead, use is guided by the duration and frequency of sessions. Always follow the manufacturer's instructions included with the product for specific guidance on session length and frequency.

When Is the Best Time to Use the Clear O2 Oxygen Can?

Use the canister when you experience the onset of breathlessness, fatigue, or light-headedness in situations where supplemental oxygen may help — such as immediately after intense physical activity or upon arriving at a high-altitude location. It is not intended for continuous background use throughout the day. Targeted, short sessions at the point of need will make the most of the canister's 110-litre capacity.

How Long Can You Use the Clear O2 Oxygen Can For?

The canister can be used until the oxygen supply is depleted, provided it remains within its expiry date and has been stored correctly. However, if you find that you are needing supplemental oxygen on a daily basis or that your breathlessness is not improving, this is a signal to seek medical advice. Persistent breathlessness should always be investigated by a GP rather than managed long-term with an OTC oxygen product.

Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of the Clear O2 Oxygen Can?

For most healthy adults using the canister as directed, side effects are mild and infrequent. The most commonly reported issues relate to the physical sensation of breathing concentrated oxygen rather than any systemic reaction.

  • Dry or slightly irritated throat or mouth
  • Mild headache, particularly if the canister is used for longer than recommended
  • A cool or unusual sensation in the airways during inhalation

What Are the Less Common Side Effects of the Clear O2 Oxygen Can?

Less common side effects are more likely to occur if the product is used excessively, if you breathe too rapidly during a session, or if you have an underlying sensitivity. These are not typical responses in healthy adults using the product as directed.

  • Dizziness or light-headedness, often linked to hyperventilation rather than the oxygen itself
  • Nausea in individuals who are particularly sensitive
  • Skin redness or mild irritation around the face mask contact area with prolonged use
  • Feeling of tightness or discomfort in the chest if breathing technique is incorrect

What Are the Serious Side Effects of the Clear O2 Oxygen Can?

Serious adverse effects from OTC supplemental oxygen use in healthy adults are rare. However, in individuals with certain underlying conditions — particularly COPD or hypercapnic respiratory failure — high-concentration oxygen can suppress the hypoxic respiratory drive, which is a potentially serious medical concern. This is why it is essential to consult a GP before use if you have any diagnosed respiratory condition.

If you experience sudden worsening of breathlessness, chest pain, confusion, or loss of consciousness at any point, stop use immediately and call 999. These symptoms require urgent medical attention and are not manageable with supplemental oxygen alone.

What Should You Do If You Experience Side Effects?

For mild side effects such as a dry throat or headache, stop using the canister and rest. Drinking water can help relieve throat dryness. If dizziness occurs, sit down in a safe position and breathe normally until it passes. Do not continue using the canister if you feel unwell during a session.

If side effects persist, worsen, or concern you in any way, contact your pharmacist or GP for advice. Do not attempt to self-manage serious or unexpected symptoms.

Can the Clear O2 Oxygen Can Interact With Other Medicines?

No clinically significant drug interactions are known for supplemental oxygen at OTC concentrations in otherwise healthy adults. However, if you take regular respiratory medicines — including inhalers, bronchodilators, or corticosteroids — the interaction between supplemental oxygen and your prescribed treatment should be discussed with your GP or pharmacist before use. People with COPD in particular should never use high-concentration oxygen without medical supervision, as it can interfere with respiratory drive in those who rely on hypoxic stimulus to breathe.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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