When a doctor advises oxygen support at home, families often have to arrange it quickly. Buying an oxygen concentrator is a big expense, and many patients need one only for a few weeks. That is why an oxygen concentrator on rent in Kolkata is one of the most searched-for home healthcare services.
This guide explains how a concentrator works, how to choose the right type, what affects rental cost, and how to use it safely.
What Is an Oxygen Concentrator?
An oxygen concentrator is an electric machine that takes in room air, filters out most of the nitrogen, and delivers air with a much higher share of oxygen through a nasal cannula or mask. Unlike a cylinder, it does not run out. As long as it has power, it keeps producing oxygen.
Concentrators are used for home oxygen therapy in conditions such as:
- COPD and other chronic lung diseases
- Post-COVID or post-pneumonia breathlessness
- Pulmonary fibrosis
- Heart failure with low oxygen levels
- Recovery after critical illness or ICU discharge
An important point: a concentrator is not an emergency device. If a patient is severely breathless, blue around the lips, confused or drowsy, they need hospital care immediately.
Oxygen Concentrator vs Oxygen Cylinder
| Feature | Concentrator | Cylinder |
| Supply | Continuous, needs electricity | Fixed, runs out and needs refilling |
| Best for | Long-term or repeated use | Emergencies, power cuts, transport |
| Refilling | Not needed | Required |
| Handling | Simple, plug in and switch on | Needs careful handling and storage |
| Cost over time | Lower for extended use | Refills add up |
Many families keep a small cylinder as a backup for power cuts while using a concentrator as the main source.
5 Litre vs 10 Litre Concentrator
Concentrators are generally sold by maximum flow rate.
- 5 litre concentrator: The most common home model. It suits most patients whose doctors prescribe low to moderate flow rates.
- 10 litre concentrator: Delivers higher flow and is used when a doctor prescribes a higher requirement, or where more than one patient must be supported under medical direction.
- Portable concentrators: Lightweight, battery-powered units for movement outside the home. They usually offer lower or pulse-based delivery and may not suit patients needing continuous high flow.
Do not choose the flow rate yourself. The prescribing doctor decides the flow rate, and the machine must be able to deliver it reliably.
What Affects the Rental Cost?
Rental charges vary between providers and change with these factors:
- Capacity: 5 litre and 10 litre machines are priced differently.
- Duration: Daily, weekly and monthly plans differ, and longer plans usually work out cheaper per day.
- Security deposit: Many providers ask for a refundable deposit.
- Delivery and installation: Check whether these are included.
- Accessories: Cannulas, masks, humidifier bottles and tubing may be charged separately.
- Backup and support: Round-the-clock breakdown support and replacement machines can influence price.
Instead of comparing only the daily rate, ask for a written total covering deposit, delivery, accessories and pickup. Caremate offers oxygen concentrators on daily, weekly and monthly rental with home delivery across Kolkata; call us for a current quote.
How to Choose a Rental Provider
Ask these questions before you book:
- Is the machine cleaned, tested and serviced before each delivery?
- Does the provider check oxygen purity and flow rather than just switching the unit on?
- Will someone demonstrate how to use it at your home?
- Is there a replacement plan if it stops working at night?
- Are filters and accessories fresh or sanitised?
How to Use an Oxygen Concentrator Safely at Home
Placement
- Keep the machine in a well-ventilated area with several inches of clear space around its air intake.
- Place it on a flat, stable surface, away from dust, curtains and damp walls.
Fire safety
- Oxygen makes fires burn faster. Keep the patient and the machine well away from flames, gas stoves, candles, incense and cigarettes. No smoking in the room.
- Avoid oil-based creams and petroleum jelly near the nose and face unless a doctor says they are fine.
Daily use
- Set the flow rate exactly as prescribed.
- Use distilled or boiled and cooled water in the humidifier bottle if one is fitted, and change it daily.
- Check that the cannula tubing is not kinked, and replace it as advised.
- Clean or replace filters as the provider instructs.
Monitoring
- Use a pulse oximeter to track the patient’s oxygen saturation (SpO2) and pulse, and note the readings regularly.
- Your doctor will tell you the target SpO2 range for that patient, since targets differ between conditions.
Power backup
- Power cuts can be a real risk in Kolkata, especially in monsoon season. Ask your provider about an inverter or battery backup, and keep a filled cylinder ready.
Common Mistakes Families Make
- Turning the flow up on their own because the patient feels breathless. Higher is not always safer, so always check with the doctor first.
- Ignoring dirty filters, which reduce performance over time.
- Using extension cords or overloaded sockets for a machine that runs for many hours.
- Skipping backup planning and discovering during a power cut that there is no alternative.
- Relying on the machine instead of monitoring the patient. Regular SpO2 checks and observation still matter.
Warning Signs: Call the Doctor or Go to Hospital
Seek urgent medical help if you notice:
- Oxygen saturation falling below the level your doctor specified
- Worsening breathlessness or fast breathing
- Bluish lips or fingertips
- Confusion, unusual sleepiness or chest pain
- The machine alarming or failing and the patient struggling
When Nursing Support Makes a Difference
Equipment alone does not make home oxygen therapy safe. A trained nurse can monitor SpO2 and vitals, spot early warning signs, manage medicines and positioning, and coordinate with your doctor. If your patient needs continuous support, our home nursing and critical care at home teams can work alongside the equipment. You can also read our complete guide to medical equipment on rent in Kolkata.
Need an Oxygen Concentrator at Home?
Call Caremate Homecare on 8910962496 or email info@carematehomecare.com. We deliver, install, and explain the equipment at your home.
Frequently Asked Questions
1. Can I get an oxygen concentrator on rent in Kolkata without a prescription?
Providers may not insist on one, but you should always follow a doctor’s advice on whether oxygen is needed and at what flow rate.
2. Can a concentrator run continuously for 24 hours?
Home concentrators are built for continuous use, but the model’s specifications and the provider’s guidance should be followed.
3. Is a concentrator better than a cylinder?
For ongoing use, yes, because it does not need refilling. A cylinder is still useful as backup.
4. How quickly can it be delivered?
Delivery time depends on availability and your location. Call Caremate to confirm.
5. Do I need a nurse to use one?
Not always, but for critically ill, elderly, or bedridden patients, nursing supervision is strongly recommended.