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Oxygen Therapy

Breathe easier
without the paperwork chase.

Stationary and portable oxygen for COPD, oxygen-qualifying conditions, and the times when ambient air just isn't enough. We confirm Medicare qualification documentation before equipment ships so there's no surprise on the back end.

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An older couple by the water, breathing the open air

What's in Oxygen Therapy

What we provide.

Stationary concentrators

For home use. Quiet enough to sit in a living room, reliable enough to run overnight. Setup + caregiver walkthrough included.

Portable concentrators

For travel, errands, and the parts of life that don't pause for oxygen. FAA-approved models for air travel where appropriate.

Supplemental tanks

Compressed and liquid oxygen tanks where prescribed alongside or in place of a concentrator. Refill logistics handled.

Qualifying documentation

We confirm Medicare oxygen-qualification documentation (ABG, SpO2, face-to-face within 30 days) before equipment ships.

Why oxygen patients pick Affinity

Qualified first.
Shipped second.
Supported the whole time.

  • Qualification confirmed before equipment ships

    Most oxygen denials are documentation issues. We confirm ABG/SpO2 thresholds + face-to-face date before we accept the order.

  • Stationary + portable matched to your life

    We size both together. The stationary unit for home, the portable for the parts of the day that don't sit still.

  • Resupply auto-set on your cadence

    Cannulas, tubing, humidifier bottles — auto-shipped on Medicare's allowed cadence so you never run out, never overpay.

  • FAA-letter included for travel

    Portable concentrator? You get the manufacturer's airline letter at delivery. Travel paperwork done, not deferred.

Two older adults in calm conversation in a sunlit room

Operational facts

What “handled” actually means.

3,400+payers

270/271 eligibility check across the Stedi clearinghouse

< 24hresponse

Average documentation-collection response time during business hours

1–3 daysmetro Phoenix

Delivery window for AZ patients once order + qualification land

100%ABG/SpO2

Oxygen orders we accept have qualification docs confirmed first

Operational metrics reflect Affinity processes as of 2026. Replaced with patient-outcome data (compliance, exacerbation reduction) once we have program N to cite.

FAQ

Common questions.

Does Medicare cover home oxygen?
Yes — Medicare Part B covers oxygen equipment as a 36-month capped rental for patients who meet the qualification criteria (arterial blood gas / pulse oximetry thresholds, documented within 30 days of order). We confirm qualification before equipment ships.
Can I travel with my portable concentrator?
Most portable concentrators we stock are FAA-approved for domestic flights. We'll send you the manufacturer's airline letter at delivery and walk you through any TSA considerations. International travel is case-by-case — call us before you book.
What's the difference between a concentrator and a tank?
A concentrator pulls oxygen from room air, so it never runs out as long as it has power. Tanks store compressed (or liquid) oxygen and need refills. Most patients use a stationary concentrator at home plus tanks or a portable concentrator for time away from a power source.
How fast can I get started after my doctor writes the order?
Typical timeline once we have the order + qualification documentation: same-day eligibility confirmation, 1–3 business days to delivery in metro Phoenix, 3–5 business days for nationwide mail-order categories. We'll give you a real ETA at the eligibility check.

Other categories

CPAP & Sleep Therapy →Mobility & Walking Aids →Diabetes Care →Hospital Beds →Daily Supplies →

Have a question?

Three fields, real payer data, plain-English answer. Or talk to a person — we're fast.

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Where we serve1-800-779-5479