Four machines, no model-number maze

Portable Oxygen Concentrators

Three portable oxygen concentrators for everyday breathing comfort: a lightweight 33% travel model, a quiet 33% home unit, and a battery-powered 93% portable oxygen machine that runs without a wall socket. Buy direct and get free US shipping, 30-day returns and phone support from a real person.

How to choose a portable oxygen concentrator

Two numbers decide it: oxygen concentration and weight. Room air is about 21% oxygen. Our 33% models add light enrichment; the 93% model delivers high-concentration oxygen closer to prescribed home oxygen, a bigger difference than weight or noise, explained in what oxygen concentration actually means. Then decide whether you need it to run off a battery: only the Battery-Powered 93% does. If every place you will use it has an outlet, a corded model is lighter and simpler.

All three are continuous-flow O2 concentrators rather than pulse-dose, so they are simple to use and fine for rest and overnight. See continuous flow vs pulse dose and how to choose a portable oxygen concentrator.

Travel oxygen concentrators

For a travel oxygen concentrator, weight and carrying are what matter. The Lightweight 33% travel set is 3.3 lb and the Battery-Powered 93% is the one to pick when there may be no outlet. Planning to fly? These are not sold with airline approval, so check your airline's portable oxygen policy before you book. Our guide to a portable oxygen concentrator for travel walks through what to ask.

Home oxygen concentrators

For home use, the quiet NT-5 runs at about 52 dB, so it can sit in a living room or bedroom without drowning out conversation. It is a home oxygen concentrator you can still carry to another room or into the car when needed.

Buying a portable oxygen concentrator

Every machine on this page is available to buy online, with the price and specs on its product page. Free US shipping, 30-day returns, a one-year warranty, and questions answered at 1-786-658-5217, Mon-Fri 8am-8pm ET, or in our FAQ. Looking for a machine for a dog or cat instead? See veterinary oxygen concentrators.

Sold as general wellness devices, not prescription medical equipment. If you are managing a diagnosed condition, talk with your doctor first.

Before you buy

Questions we get every week.

Do I need a prescription to order?

No. Our machines are sold as general wellness devices for everyday breathing comfort, so you can order directly. If you're managing a health condition, talk with your doctor first.

How fast does it arrive?

Orders are processed in 1–2 business days, then arrive in 3–5 within the US. Shipping is free on every order, with no minimum.

What if it isn't right for me?

Thirty days from delivery. Unopened items come back with no restocking fee; opened items carry a 15% restocking fee, and return shipping is yours either way. If we sent the wrong item or it arrived defective, that's on us — we cover it.