What home oxygen is and why people use it

Home oxygen is supplemental oxygen delivered to your lungs while you stay at home, usually through a machine that concentrates oxygen from the air around you or through portable tanks. Your body needs oxygen to function, and some medical conditions — like chronic obstructive pulmonary disease (COPD), heart failure, or severe pneumonia recovery — can make it harder for your lungs to pull enough oxygen from regular air on their own. Home oxygen helps your organs and tissues get what they need.

You do not buy home oxygen the way you buy groceries. A doctor must first test your blood oxygen level and write an order. That order goes to a medical equipment company, which delivers the machine, sets it up, trains you how to use it, and handles refills or repairs. The equipment company bills your insurance or Medicare, and you may owe a copay or coinsurance depending on your plan.

Home oxygen is not a cure. It is a tool that lets you breathe easier, stay more active, and reduce strain on your heart while your body heals or while you manage a long-term condition. Some people use it only at night or during exercise. Others need it around the clock.

Key Takeaways

  • A doctor must order home oxygen after testing your blood oxygen level; you cannot obtain it without a prescription.
  • A medical equipment company delivers and maintains the equipment, and your insurance or Medicare typically covers most or all of the cost.
  • The three main types are stationary concentrators (plugged into a wall), portable concentrators (battery-powered), and oxygen tanks (liquid or compressed gas).
  • Setup usually takes a few days to a week after your doctor's order, and the equipment company will show you how to use it safely.
  • Home oxygen requires regular maintenance and refills, which the equipment company handles as part of your service.

The three main types of home oxygen systems

Stationary concentrators are the most common. They plug into an electrical outlet and pull oxygen directly from the air in your room, concentrate it, and deliver it through a tube to your nose or mouth. They are quiet, reliable, and do not need refills — you just plug them in. The downside is that you are tethered to the outlet, usually within 50 feet of the machine by tubing. If you need oxygen while moving around the house or leaving home, you will need a second system.

Portable concentrators are smaller, battery-powered machines that work the same way as stationary ones but weigh 5 to 10 pounds and run on rechargeable batteries. They let you move around freely and leave the house, though battery life varies — some last 4 to 8 hours per charge. They cost more than stationary concentrators and may not deliver oxygen as continuously as a plugged-in machine, so your doctor will determine whether one is right for your needs.

Oxygen tanks hold liquid or compressed oxygen gas. They are smaller and lighter than concentrators but require refills — you either swap out empty tanks for full ones or have them refilled at a supplier. Tanks are often used as backup when the power goes out or as a portable option for people who travel. Some people use tanks exclusively if they need oxygen only part-time.

How to get home oxygen: the steps from doctor to delivery

The process starts with your doctor. They will order a blood oxygen test (usually a pulse oximeter reading or arterial blood gas test) to measure how much oxygen is in your blood. If the reading is below a certain threshold — the exact number depends on your condition and what you are doing when tested — your doctor will write a prescription for home oxygen and specify how many hours per day you need it and at what flow rate (measured in liters per minute).

Your doctor will send that prescription to a medical equipment company, often called a Durable Medical Equipment (DME) supplier. You may be able to choose which company, or your insurance may direct you to one. The company will contact you to confirm your address, insurance information, and delivery time. They typically deliver within a few days to a week.

When the equipment arrives, a technician will set it up in your home, show you how to use it, explain safety rules (like keeping it away from heat and open flames), and leave you with written instructions and a phone number for questions or emergencies. They will also schedule regular check-ins to make sure the equipment is working and to handle any maintenance or refills you need.

What insurance and Medicare cover

Medicare Part B covers home oxygen if a doctor prescribes it and you meet medical criteria. Medicare typically pays 80 percent of the approved amount after you meet your Part B deductible, and you pay the remaining 20 percent as coinsurance. Some people have a Medigap or Medicare Advantage plan that covers part or all of that coinsurance.

Private insurance plans vary widely. Some cover home oxygen at 80 or 90 percent; others require a higher copay or coinsurance. Your insurance company may also require prior authorization, meaning your doctor's office must get approval before the equipment company can deliver the system. This usually takes a few days but can delay delivery if paperwork is incomplete.

If you do not have insurance or your insurance denies coverage, ask the equipment company about their cash prices and payment plans. Some companies offer discounts for uninsured patients, and some nonprofits help cover the cost. Your doctor's office or a social worker at your hospital can point you toward local resources.

Safety and maintenance at home

Home oxygen is safe when used correctly, but it does require care. Oxygen itself is not flammable, but it makes fire burn hotter and faster, so you must keep the machine and tubing away from open flames, heaters, and smoking. Never use oil-based lotions or Vaseline on your face or lips while using oxygen — use water-based products instead. Keep the machine in a well-ventilated area and away from dust, pets, or anything that could clog the filter.

The equipment company will show you how to clean the tubing and mask, how often to replace the filter, and what to do if the machine stops working or sounds unusual. Most companies provide a backup machine or tank in case yours breaks down, and they have a 24-hour phone line for emergencies. If you lose power during a storm, call your equipment company when ready — they can deliver a backup tank or portable concentrator while your power is restored.

If you travel, tell your equipment company in advance. They can arrange for oxygen to be waiting at your destination or provide you with portable tanks for the trip. Airlines have specific rules about traveling with oxygen, so check with your airline and your equipment company before you book.

Common reasons home oxygen is prescribed

COPD is the most common reason. The disease damages the lungs' ability to absorb oxygen, and supplemental oxygen reduces the work your heart has to do to pump oxygen-poor blood. Heart failure, severe asthma, cystic fibrosis, and interstitial lung disease are other chronic conditions where home oxygen is routine.

Some people need home oxygen temporarily — after pneumonia, after surgery, or while recovering from a severe respiratory infection. Once they heal, they may no longer need it. Others, like people with advanced COPD or pulmonary fibrosis, will use it for the rest of their lives.

Your doctor will tell you whether your need is temporary or long-term and whether you need oxygen all day, only at night, or only during exercise. This affects which type of system makes sense for you and how your insurance will cover it.

What happens if you stop using home oxygen

If your doctor prescribed home oxygen, stopping it without medical approval can be dangerous. Low blood oxygen over time damages your heart, brain, and other organs. If you feel your oxygen needs have changed — you are short of breath less often, or you feel the machine is not helping — tell your doctor instead of stopping on your own. They can retest your oxygen level and adjust your prescription.

If you want to stop using oxygen, your doctor can help you do it safely, possibly by gradually reducing the hours you use it or the flow rate. Some people do recover enough to stop needing it, but that decision should come from your doctor based on test results, not on how you feel.

Frequently Asked Questions

How long does it take to get home oxygen after my doctor orders it?

Most equipment companies deliver within 3 to 7 days of receiving your doctor's prescription. If your insurance requires prior authorization, add a few extra days for that approval. If you need oxygen urgently, tell your doctor — they can sometimes arrange for a tank to be delivered the same day while you wait for a concentrator.

Can I use home oxygen while I sleep?

Yes. Many people use oxygen only at night because their oxygen levels drop when they sleep. Your doctor will specify the hours you need it. You can wear the nasal cannula (the small tubes that go in your nose) while lying down, and the tubing is long enough to let you move around in bed.

What if I need to travel by plane with home oxygen?

Airlines allow portable oxygen concentrators on board, but you must notify the airline at least 48 hours before your flight and follow their specific rules about battery size and type. Your equipment company can help you arrange this and can also coordinate oxygen delivery at your destination. Never pack oxygen tanks in checked luggage.

Will I always need home oxygen, or is it temporary?

It depends on your condition. Some people use it temporarily while recovering from an illness or surgery. Others with chronic lung disease will need it long-term. Your doctor will retest your oxygen levels periodically to see whether your needs have changed and whether you can reduce or stop using it.

What should I do if my oxygen machine stops working?

Call your equipment company's 24-hour number when ready. They will troubleshoot the problem over the phone or send a technician to fix or replace it. Most companies provide a backup machine or tank while yours is being repaired, so you will not go without oxygen.