Longfian 5 Litre Oxygen Concentrator – Dependable Home Oxygen Therapy Machine

A Longfian 5 litre oxygen concentrator turns ordinary room air into concentrated oxygen, day and night, with no refilling and no delivery of heavy cylinders. For families in Dhaka and across Bangladesh looking after a parent, spouse, or relative who needs supplemental oxygen at home, it is the most practical long-term solution. The Longfian JAY-5 series, offered by Advanced Medical Equipment, is one of the most widely used 5 LPM home concentrators in the Bangladeshi market because it combines proven pressure swing adsorption technology, a simple control panel, and an affordable price.

Longfian Scitech is a Chinese manufacturer that has exported oxygen concentrators to many countries for years, and the JAY-5 platform has a regulatory history, including a US FDA 510(k) clearance for the Longfian JAY-5 model, where it is classified as a Class II oxygen concentrator intended for patients with respiratory disorders who require supplemental oxygen. The unit is intended for use in homes and institutions, and it is not designed to sustain or support life on its own.

What Makes the Longfian 5L Oxygen Concentrator a Smart Choice?

• Adjustable flow from 0.5 to 5 litres per minute – suitable for most prescribed home-oxygen flow settings.
• Oxygen concentration of 93% (±3%) at rated flow – the medical-grade range expected from a PSA concentrator.
• Outlet pressure of 0.04–0.07 MPa (about 6–10 psi) – sufficient for nasal cannula and standard humidifier use.
• Pressure swing adsorption (PSA) technology – separates oxygen from nitrogen and other gases in the air, using molecular-sieve beds, at constant temperature.
• Built for long operation – designed for extended daily use, which is what chronic respiratory patients need.
• Humidifier bottle and flowmeter on the front panel – easy to read and adjust, even for elderly caregivers.
• Wheeled cabinet – casters under the base let you roll it from the living room to the bedroom.
• LCD display and alarm functions on supported versions – to help the user monitor running status and be alerted to faults such as power failure or low pressure (features vary by sub-model, so please confirm at purchase).

How a PSA Oxygen Concentrator Works

Room air contains about 21% oxygen and 78% nitrogen. The concentrator draws air through an intake filter, compresses it, and passes it into sieve beds that adsorb nitrogen. The remaining oxygen-rich gas is stored in a small tank, then released through the flowmeter at the rate you set. While one bed produces oxygen, the other is purged, and the two alternate, which is why oxygen flows steadily without interruption. Because the machine uses only air and electricity, you never run out of oxygen as long as power is available, and there are no cylinders to refill.

Who Needs a 5 Litre Oxygen Concentrator?

A 5 LPM concentrator is the standard size for home oxygen therapy. It is commonly prescribed by doctors for patients with:

• Chronic obstructive pulmonary disease (COPD) and chronic bronchitis.
• Asthma that needs supplemental oxygen during attacks or recovery.
• Pneumonia or post-COVID breathing problems during recovery.
• Interstitial lung disease and pulmonary fibrosis.
• Heart-related breathlessness where a doctor has advised oxygen.
• Sleep-related low oxygen levels under physician supervision.
• Elderly patients in home care or nursing homes.

Important: oxygen is a medical therapy. Please have the flow rate and duration prescribed by a registered doctor. If a patient has severe symptoms or very low blood-oxygen readings, seek hospital care immediately. A 5-litre concentrator is not a replacement for emergency treatment.

5 Litre vs 10 Litre – Which Size to Choose?

Choose a 5 LPM machine when the doctor's prescription is 5 litres per minute or less, which covers the majority of home cases. A 10 LPM unit is for patients who need higher flows, or for two-patient set-ups where two flowmeters are available. Buying a bigger machine than necessary adds cost, weight, and electricity use. If you are unsure, call us on 01718-528863 and we will explain the options, including the Longfian 10L and Owgels 10L models we also supply.

Setting Up Your Longfian Concentrator

• Place the machine on a flat, hard surface in a well-ventilated room, at least 20–30 cm away from walls and curtains so the air inlet and cooling vents are not blocked.
• Fill the humidifier bottle with clean or distilled water up to the marked level and screw it on firmly.
• Connect the oxygen tube and nasal cannula to the humidifier outlet.
• Plug into a stable 220V supply (a voltage stabiliser is advisable in areas with fluctuating power), then switch on and allow the machine to warm up for a few minutes.
• Turn the flowmeter knob to the prescribed litres per minute. The ball should sit in the centre of the line, read at its middle.
• Switch off and unplug when not in use, and change the water daily.

Daily Care and Maintenance

Clean the intake air filter at least weekly, rinsing it in lukewarm water with a little mild soap, drying it fully, and refitting it. In dusty cities like Dhaka, check it more often. Wipe the cabinet with a damp cloth. Wash the humidifier bottle and cannula regularly, and replace cannulas as recommended. Never use oil, alcohol sprays, or strong solvents on or near the machine. Schedule periodic servicing through our team so the sieve beds, compressor, and valves remain in good condition, and keep the machine at least a metre from heaters and open flames.

Safety Tips

• No smoking, candles, incense, or open flames around the concentrator or the patient.
• Keep oil-based creams and petroleum jelly away from the nose and tubing area.
• Do not use extension cords with overloaded sockets. Plug directly into a wall outlet or a good-quality stabiliser.
• A concentrator should not be used as the oxygen source for ventilators, CPAP, or high-flow nasal oxygen systems unless the manufacturer states it is suitable.
• Keep a small backup oxygen cylinder at home for power outages.

Why Buy from Advanced Medical Equipment?

• Focused supplier of respiratory and home-care equipment in Bangladesh.
• Medium-market, transparent pricing and clear invoice.
• Machine testing and a simple demonstration at handover.
• Service guidance and spare parts such as air filters, humidifier bottles, and cannulas.
• Delivery inside Dhaka and to other districts.
• Friendly advice on choosing between 5L, 10L, and portable models.

Frequently Asked Questions

Can this machine run 24 hours a day? Longfian designs the JAY-5 series for continuous home use. Allow the machine to rest briefly if the manual advises it, and follow the service schedule.

Does it need a stabiliser? Bangladesh power can fluctuate. A good stabiliser or a UPS built for medical loads helps protect the compressor.

What accessories are included? Typically the unit, power cord, nasal cannula, and air-filter, with a humidifier bottle on most sets. Please confirm the exact package at order.

Is it noisy? Compressor machines make a steady hum. Place it slightly away from the bed, with the tube long enough to reach the patient.

Can I buy a spare filter? Yes, we supply air filters and humidifier bottles.

Order the Longfian 5 Litre Oxygen Concentrator from Advanced Medical Equipment and give your family a reliable, always-ready source of oxygen at home.