Buy or rent medical-grade oxygen cylinders for home use. We stock mini, Linde, Islam, and China cylinders — with 24/7 delivery across Dhaka and nationwide.
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Full set with regulator & trolley
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From ৳ 2,500 / 7 days
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Dhaka same-day from ৳ 800
π Buyer’s Guide
If you or a loved one needs supplemental oxygen at home, understanding oxygen cylinder options and pricing in Bangladesh is essential. At Care Plus, we offer the widest selection of medical-grade oxygen cylinders β available for purchase, rent, or refill β with 24/7 delivery across Dhaka and all major cities in Bangladesh.
An oxygen cylinder, also called a compressed oxygen tank, pressurised gas vessel, or medical oxygen bottle, is a sealed high-strength metal container storing purified oxygen at concentrations of 99.5% purity or above. To understand why this matters, consider that the air we breathe naturally contains only around 21% oxygen, with the remaining 79% made up of nitrogen, argon, and trace gases. A medical oxygen cylinder strips away everything except the oxygen, compresses it to 150 to 200 bar of pressure (approximately 2,200 to 3,000 PSI), and stores it in a form that can be delivered directly to a patient’s lungs on demand.
Within the broader family of compressed gas cylinders (which includes industrial oxygen tanks, acetylene cylinders, nitrogen vessels, and CO2 tanks), medical oxygen cylinders occupy a distinct subcategory governed by pharmaceutical purity regulations and government certification requirements. An industrial oxygen cylinder and a medical oxygen cylinder may look identical on the outside, but their contents are held to entirely different standards. Using industrial oxygen for patient therapy is not a safe substitute and carries serious health risks.
Cylinders come in a gradable range of sizes: large stationary hospital cylinders holding several thousand litres, standard medium home-use cylinders (1.36 cubic metres capacity), and compact portable mini cylinders (0.7 cubic metres) designed for ambulance transport, hospital visits, and outdoor mobility.
| Product | Type | Size | Price (৳) | Status |
|---|---|---|---|---|
| Mini Oxygen Cylinder | Aluminium β Portable | Size C (small) | ৳ 10,500 | β In Stock |
| Linde (BOC) Cylinder | Steel β Full Set | Medium and Standard | ৳ 14,500 | β In Stock |
| Islam Oxygen Cylinder | Steel β Full Set | Medium and Standard | ৳ 10,000 | β In Stock |
| China Oxygen Cylinder | Steel β Full Set | Medium and Standard | ৳ 8,000 | β In Stock |
| Oxygen Cylinder Rent | 7 Days Rental | Medium and Standard | ৳ 2,500 | β Available |
| Oxygen Cylinder Refill | Refill Service | All sizes | From ৳ 800 | β 24/7 |
Understanding how an oxygen cylinder works means understanding each of its component parts (meronyms of the complete oxygen delivery system) and the functional relationship between them.
The cylinder body (the pressurised storage vessel or tank shell) holds compressed oxygen at 150 to 200 bar of internal pressure. On its own, this raw high-pressure gas cannot safely reach a patient. It first passes through the cylinder valve (the on/off shut-off mechanism at the tank neck), which when opened releases the pressurised oxygen into the regulator.
The pressure regulator (the pressure reduction valve, sometimes called the demand valve) is the most critical safety component in the system. It receives dangerous high-pressure gas from the cylinder and steps it down to a safe, stable low-pressure output suitable for human inhalation. Think of it as a gatekeeper between the raw stored pressure and the therapeutic flow. Without a functioning regulator, direct cylinder gas would be far too forceful and unsafe to inhale.
From the regulator, oxygen passes through the flowmeter (the LPM output rate controller), which allows the caregiver or patient to set the precise volume of oxygen being delivered per minute, ranging from 0.5 LPM (low-flow supplemental therapy for mild hypoxia) up to 15 LPM (high-flow emergency oxygen for acute respiratory distress). The flowmeter reading is always set according to the prescribing physician’s instructions and should never be adjusted without medical guidance.
Before reaching the patient, the oxygen passes through the humidifier bottle (the airway moisture system, a small sterile-water-filled chamber) which adds moisture to the dry compressed gas, preventing the nasal dryness, mucosal irritation, and nosebleeds that prolonged dry oxygen therapy causes. From the humidifier, the oxygen travels through a delivery tube to either a nasal cannula (the two-prong soft inhalation tube inserted gently into the nostrils, preferred for low to medium flow rates and overnight therapy) or an oxygen face mask (the full-cover sealed inhalation interface used for higher flow requirements and emergency use).
Throughout therapy, the pressure gauge (the remaining gas level indicator dial on the regulator) shows the declining internal pressure, giving the caregiver a live readout of how much oxygen supply remains before a refill or cylinder exchange is needed.
Oxygen cylinders are used wherever supplemental oxygen therapy (the clinical delivery of additional breathable oxygen above the 21% naturally present in ambient air) is required. This covers a wide spectrum from mild home use all the way to critical emergency care.
At the mild end of the gradable scale, oxygen cylinders support patients with low-grade hypoxia (slightly reduced blood oxygen saturation) caused by age-related reduced lung capacity, mild COPD flare-ups, and post-viral respiratory weakness after pneumonia or COVID-19 recovery. Moving toward the moderate range, they support patients on long-term home oxygen therapy for chronic conditions including COPD (chronic obstructive pulmonary disease, a progressive airflow limitation disease), pulmonary fibrosis (progressive lung tissue scarring reducing oxygen transfer capacity), chronic asthma (recurrent airway inflammation and constriction), and chronic heart failure with pulmonary oedema (fluid buildup in the lungs reducing breathing efficiency).
At the severe end, oxygen cylinders provide emergency respiratory support for patients experiencing acute respiratory distress syndrome (ARDS), anaphylaxis (severe systemic allergic reaction with airway involvement), cardiac arrest resuscitation, stroke oxygenation, drowning recovery, and trauma care. They are also used in neonatal care (premature infant oxygenation for underdeveloped lungs), palliative care (end-of-life breathing comfort), post-surgical recovery oxygenation after general anaesthesia, and pre-hospital ambulance emergency care.
Anyone whose blood oxygen saturation (SpO2, the percentage of oxygenated haemoglobin in the bloodstream measured by a pulse oximeter) consistently falls below 95% at rest, during physical activity, or during sleep is a candidate for supplemental oxygen therapy and may need access to an oxygen cylinder.
The spectrum of users runs from temporary to permanent need. At the temporary or short-term end, post-surgical patients recovering from general anaesthesia, patients discharged from hospital after pneumonia or COVID-19 lung involvement, and individuals recovering from acute respiratory infections may need oxygen support for days to weeks before their natural lung function restores adequate oxygenation independently. At the long-term or chronic end, patients with advanced COPD (particularly stage 3 or stage 4, where resting SpO2 drops below 88%), pulmonary fibrosis, chronic heart failure, lung cancer, and permanent neurological conditions affecting respiratory muscle function may require continuous oxygen therapy for months or years, sometimes around the clock.
Emergency users represent a separate category entirely: stroke victims, drowning survivors, trauma patients, and individuals experiencing acute anaphylaxis or cardiac events all require high-flow emergency oxygen at the scene, before hospital admission. This is the group for whom a 24-hour cylinder delivery service (like the one offered by Care Plus) is most critical, because delays of even minutes can have serious clinical consequences.
The total oxygen volume a cylinder holds depends on two variables: its physical capacity (the internal size of the tank measured in cubic metres or litres) and its filling pressure (how tightly the oxygen has been compressed inside the tank at the time of filling).
The two most common cylinder sizes available for home use in Bangladesh illustrate this clearly. A standard medium oxygen cylinder (1.36 cubic metres of gas capacity) contains approximately 1,360 litres of oxygen when fully pressurised. A mini portable oxygen cylinder (0.7 cubic metres) holds approximately 700 litres.
To make these numbers meaningful in practice: at a typical moderate home therapy flow rate of 2 LPM (litres per minute), a fully filled standard cylinder will supply approximately 680 minutes, or around 11 hours, of continuous oxygen. At a higher prescribed flow rate of 5 LPM, the same cylinder is depleted in approximately 272 minutes, or around 4.5 hours. At an emergency high-flow rate of 10 LPM, it lasts only around 2 hours. This is why patients on continuous long-term oxygen therapy cannot rely on a single cylinder and must maintain either multiple cylinders in rotation or a reliable 24-hour refill arrangement to avoid dangerous supply gaps.
The oxygen level remaining inside a cylinder is read using the pressure gauge (the remaining gas level indicator), a circular dial fitted to the regulator that displays internal cylinder pressure in PSI (pounds per square inch) or bar (the metric pressure unit equivalent). Because oxygen pressure and stored volume are directly proportional inside a sealed cylinder, the gauge reading gives a reliable indication of how much gas remains.
A fully filled standard medium cylinder typically reads between 130 and 150 bar (approximately 1,900 to 2,200 PSI) on the pressure gauge. As the patient receives therapy and oxygen is consumed, the gauge reading gradually decreases. A reading between 50 and 80 bar indicates approximately a quarter to half tank remaining and signals that a refill should be arranged soon. A reading below 30 bar (approximately 435 PSI) means the cylinder is approaching empty and immediate refill or replacement is required. A reading of zero means the cylinder is fully depleted and cannot supply any further oxygen regardless of the flow setting.
Caregivers should develop the habit of checking the pressure gauge at three key moments: before every therapy session begins, before the patient goes to sleep at night, and at mid-session for long therapy periods. A pulse oximeter (a finger-clip SpO2 monitor measuring blood oxygen saturation) should always be used alongside the pressure gauge to confirm that the prescribed flow rate is actually maintaining the patient’s oxygen levels within the target saturation range.
Cylinder duration is a functional relationship between two measurable variables: total stored gas volume (capacity) and prescribed flow rate (LPM output). The higher the flow rate, the shorter the cylinder lasts. The larger the cylinder, the longer it lasts at the same flow rate.
For a fully filled standard medium cylinder (approximately 1,360 litres of oxygen), approximate durations at common flow settings are as follows. At 1 LPM (low-flow supplemental therapy for mild hypoxia or nocturnal oxygen therapy), the cylinder lasts approximately 22 hours. At 2 LPM (standard moderate home therapy), approximately 11 hours. At 3 LPM, approximately 7.5 hours. At 5 LPM (higher demand respiratory support), approximately 4.5 hours. At 10 LPM (high-flow acute use), approximately 2 hours.
For patients requiring continuous 24-hour oxygen therapy, even a full standard cylinder at 2 LPM will need replacing within a single day. This reality makes a dependable refill service not a convenience but a medical necessity. Care Plus provides a round-the-clock cylinder exchange and refill service across Dhaka precisely because supply interruptions during ongoing oxygen therapy carry direct clinical risk. Patients are advised to arrange a refill at least 2 hours before the pressure gauge reading falls to the empty zone, never waiting until the cylinder is completely exhausted.
Yes, and for many patients sleeping with oxygen is not optional but clinically essential. Nocturnal oxygen therapy (overnight supplemental oxygen delivered during sleep) is one of the most common and medically significant home uses of oxygen cylinders, particularly for patients with nocturnal hypoxia (blood oxygen desaturation that occurs specifically during sleep even when daytime SpO2 appears adequate), obstructive sleep apnoea with hypoxaemia, advanced COPD, and chronic heart failure.
For sleeping patients, the nasal cannula (the two-prong soft inhalation tube) is strongly preferred over the oxygen face mask. The cannula allows normal mouth breathing, does not restrict the face, does not cause claustrophobia, and stays comfortably in position during natural sleep movement. The face mask, by contrast, is the preferred interface for higher flow rates during waking hours but is poorly tolerated during sleep by most patients.
Before sleeping, caregivers should always check the pressure gauge to confirm the cylinder holds enough oxygen to last the full duration of sleep without running empty overnight. At 2 LPM, a full standard cylinder lasts approximately 11 hours, which is sufficient for most nights. At higher prescribed flow rates, a second cylinder on standby may be necessary.
A complete home oxygen cylinder therapy setup is not just the cylinder itself. It is a system of interconnected accessories (meronyms of the full delivery apparatus), each performing a specific function in the chain between the stored gas and the patient’s airway.
The pressure regulator (pressure reduction and control valve) attaches directly to the cylinder valve and steps down dangerous high-pressure gas to a safe therapeutic level. Without it, the cylinder is unusable for patient therapy. The flowmeter (LPM output rate controller) controls and displays the precise oxygen delivery volume per minute as prescribed by the treating physician. The humidifier bottle (airway moisture system) is a sterile-water-filled chamber that adds moisture to dry compressed oxygen, preventing nasal dryness, nosebleeds, and throat irritation during sessions longer than 20 to 30 minutes. The nasal cannula (two-prong soft inhalation tube) or oxygen face mask (full-cover sealed inhalation interface) delivers the humidified oxygen from the flowmeter directly to the patient’s airway. The wheeled steel trolley (patient-side mobility stand) allows safe repositioning of the cylinder between rooms without lifting. The pressure gauge (remaining gas level indicator) monitors how much oxygen remains in the cylinder at any time. A pulse oximeter (finger-clip SpO2 blood oxygen saturation monitor) used alongside the cylinder confirms that the prescribed flow rate is achieving the target oxygen saturation in the patient’s blood.
Care Plus supplies all of these accessories as a complete ready-to-use set with every oxygen cylinder purchase, with free installation and setup guidance at delivery.
The most dangerous mistake is using industrial-grade oxygen instead of medical-grade oxygen. Industrial oxygen (filled for welding, cutting, and manufacturing purposes) does not meet pharmaceutical purity standards and may contain traces of contaminants harmful when inhaled directly into human lungs. Medical-grade and industrial-grade cylinders are taxonomic siblings within the compressed gas cylinder family but are not interchangeable for clinical use under any circumstances.
Storing or using the cylinder near open flames, gas stoves, or burning cigarettes is a critical hazard. Oxygen is a powerful oxidiser (a substance that dramatically accelerates combustion in nearby materials), meaning even a small nearby flame in an oxygen-enriched environment can ignite and spread rapidly and uncontrollably. The cylinder must be kept at least 1.5 metres from any heat source or naked flame at all times.
Not checking the pressure gauge before therapy sessions leads to unexpected mid-session supply failures, which are distressing and clinically risky for dependent patients. The gauge should be checked before every session and before sleeping.
Skipping the humidifier bottle causes progressive mucosal dryness, recurrent nosebleeds, throat irritation, and discomfort during extended therapy sessions. The humidifier is not an optional accessory for sessions exceeding 20 to 30 minutes.
Leaving the cylinder valve open between sessions causes slow continuous gas leakage even when the flowmeter is at zero, wasting the cylinder supply and reducing the duration available for the next therapy session.
Adjusting the prescribed flow rate without medical guidance is a frequently made and potentially dangerous error. In certain COPD patients, breathing is driven by low blood oxygen rather than high carbon dioxide as in healthy individuals. Increasing flow rate beyond prescription can in these patients suppress the natural respiratory drive, a serious complication known as hypercapnic respiratory failure.
Where Can I Buy an Oxygen Cylinder?
You can buy an original certified medical-grade oxygen cylinder from Care Plus, a trusted government-approved oxygen cylinder supplier in Bangladesh. Care Plus supplies complete ready-to-use oxygen cylinder sets including the cylinder, regulator (pressure control valve), flowmeter (output rate controller), humidifier bottle (airway moisture system), nasal cannula, oxygen face mask, and wheeled steel trolley at the most competitive prices in Bangladesh.
Care Plus offers free home delivery across all areas of Dhaka within 2 hours of ordering, making it the fastest and most reliable source for both planned purchases and emergency oxygen needs. A 24-hour refill and cylinder exchange service ensures supply is never interrupted. Both outright purchase and flexible monthly rental options are available for short-term recovery patients and long-term chronic therapy users alike. Call or WhatsApp Care Plus at +880 1675 30 50 77 any time of day or night.
Rental starts from ৳ 2,500 7 days with same-day delivery in Dhaka. Rental packages include the cylinder, regulator, flowmeter, and trolley.
We provide 24/7 oxygen cylinder refill service in Dhaka. Medical-grade oxygen with 99.5% purity. Home pickup and re-delivery available. Refill prices start from ৳ 800.
Everything you need to know about oxygen cylinders in Bangladesh
24/7 delivery across Dhaka. Call us for emergency oxygen supply, rental, or refill service.
