What a 5L Oxygen Machine Costs to Run Each Month

Introduction

The rental figure for an oxygen machine is easy to find. The electricity bill afterwards is the part nobody quotes, and it is the part that worries families the most.

So let us do the arithmetic properly, with Malaysian tariffs, and put a realistic monthly number on it.

Our Oxi Home Machine 5L rents at RM250 a month. Everything below is what sits on top of that.

The Rental Line

RM250 a month covers the machine itself, and on a rental it also covers servicing and replacement if the unit develops a fault. That last part matters more than people expect — a compressor is a mechanical component with a service life.

Unlike the cylinder route, there is no gas line at all. No refills to book, no deliveries to wait for, no gauge to watch.

That is the whole appeal: a fixed number instead of a variable one.

Working Out the Electricity

The Formula

Monthly kWh = machine wattage ÷ 1000 × hours used per day × 30. Multiply that by your TNB rate per kWh and you have the answer.

A Worked Example

Take a 5L home unit drawing roughly 350 W. Run continuously, 24 hours a day:

0.35 kW × 24 h × 30 days = 252 kWh a month. At an indicative domestic rate of around RM0.50 per kWh in the higher tariff bands, that is roughly RM126 a month in electricity.

Run 12 hours a day instead and it halves to around RM63.

Why Your Actual Figure Will Differ

Malaysian domestic tariffs are tiered, so an oxygen machine pushes your household into higher bands and the marginal cost of those units is what actually applies. Check your own bill for your marginal rate rather than using an average.

Machine wattage also varies by model and by the flow setting in use, which is set by the treating doctor, not by us.

Filters and Consumables

The Gross Particle Filter

A washable foam filter that keeps dust out of the intake. It costs nothing to maintain — you rinse it and let it dry. In a Malaysian household with open windows and ceiling fans, doing this regularly genuinely matters.

Nasal Cannula and Tubing

Consumables replaced periodically. Individually inexpensive, but budget a small monthly allowance rather than treating them as free.

Humidifier Bottle

If one is used, it needs regular cleaning with clean water. Again, negligible cost, real maintenance habit.

Internal Servicing

On a rental, this is ours. On a purchased machine, sieve beds and compressors eventually need attention and that is a real ownership cost people rarely budget for.

The Realistic Monthly Total

Putting it together for a household running the machine continuously:

RM250 rental + roughly RM126 electricity + a small consumables allowance = around RM380 to RM400 a month, all in.

For 12-hour daily use, roughly RM320 to RM340.

Compare that against the cylinder route: three refills a month plus rental is RM360 and climbing, with delivery waits attached. Households in Bangi and Cyberjaya running continuously almost always find the machine both cheaper and less disruptive. You can check your own numbers on the calculator.

Four Ways to Reduce the Running Cost

Clean the intake filter on schedule. A clogged filter makes the compressor work harder, which costs electricity and shortens the machine's life. This is the cheapest saving available and most people skip it.

Give the machine breathing room. Pushed against a wall or into a cupboard, it recirculates its own warm air and works harder. Leave clear space around the intake.

Keep it out of direct sun. A machine in a hot corner of a Malaysian home runs hotter and less efficiently. A shaded, ventilated spot is free efficiency.

Take the bundle if you also need a cylinder. The Save Combo Package at RM320 a month includes the machine, a backup cylinder and an oximeter for less than renting them separately.

FAQ

How much does an oxygen machine cost per month in Malaysia?

RM250 a month to rent the Oxi Home Machine 5L, plus electricity. Continuous use adds roughly RM120 to RM130 in power; half-day use roughly halves that.

Does an oxygen machine use a lot of electricity?

It is a continuous load, so it is noticeable on a bill — comparable to running a small appliance around the clock. It is not in the same league as air conditioning.

Is it cheaper than refilling cylinders?

Past about two refills a month, yes, and the gap widens with usage. Below that, cylinders are cheaper.

Do I need to buy filters separately?

The main intake filter is washable and reusable. Cannula and tubing are periodic consumables. Ask us what is included in your rental.

What happens if the machine breaks down?

On a rental, we service or replace it. That is one of the main reasons households rent rather than buy.

Conclusion

Budget around RM380 to RM400 a month all in for a 5L oxygen machine running continuously in Malaysia, or roughly RM320 to RM340 for half-day use.

That is a fixed, predictable number with no refill trips attached — which for continuous use is usually both cheaper and calmer than cylinders. Message us with your expected hours and we will work out your figure.