Denver is the “Mile High City”: the 13th step on the west side of the Colorado State Capitol is exactly 5,280 feet (about 1,609 m) above sea level (Visit Denver). Mountain towns and passes are much higher. With COPD, the lower oxygen pressure at altitude can push saturation down. The FDA notes saturation is “generally slightly lower for those living at higher altitudes” (FDA).
This guide summarizes a 2023 review, “Counseling Patients with COPD Traveling to High Altitude” (Bloch et al.), and device manuals. It’s for planning conversations with your clinician, not a substitute for them.
Who needs extra planning
| Situation | What the review says |
|---|---|
| Very severe airflow obstruction, hypoxemia or hypercapnia near sea level | Shouldn’t travel to high altitude without supplemental oxygen |
| Hypoxemic GOLD 3–4 patients meeting low-altitude oxygen criteria | Travel only with adequate oxygen |
| After an exacerbation | Be clinically stable, at least 1 month after an exacerbation (at least 2 weeks stable) |
| Resting SpO2 under 92% at low altitude | Arterial blood gas assessment suggested before travel |
| At altitude, resting SpO2 under 85% and/or more than mild altitude-sickness symptoms | Start oxygen or descend |
| On noninvasive ventilation | Target SpO2 88–92% |
Oxygen at night
In a randomized trial cited by the review, at 2,050 m (about 6,730 ft), nocturnal oxygen at 3 L/min cut altitude-related adverse health effects in lowlanders with COPD from 26% to 4%. The review suggests nocturnal oxygen at 2–3 L/min for patients at risk (Bloch et al.). Many POCs aren’t designed for sleep; see POCs for sleeping.
Pulse vs continuous at altitude
The review prefers continuous flow over pulse mode at altitude, because pulse devices may fail to trigger with nasal obstruction or mouth breathing (Bloch et al.). Pulse settings aren’t liters per minute; see pulse dose vs continuous flow.
Device altitude limits
| Device | Rated operating altitude | Source |
|---|---|---|
| Inogen Rove 6 (POC) | Up to 10,000 ft | Rove 6 manual |
| OxyGo NEXT (POC) | Up to 10,000 ft | NEXT manual |
| CAIRE FreeStyle Comfort (POC) | Up to 10,000 ft | FreeStyle Comfort manual |
| CAIRE Companion 5 (stationary) | Up to 9,879 ft (retailer listing) | DME Supply USA |
| ResMed AirSense 11 (CPAP) | Up to 9,870 ft | AirSense 11 guide |
| ResMed AirSense 10 (CPAP) | Up to 8,500 ft | AirSense 10 guide |
Denver is well within these limits. High mountain passes may not be. Check the manual for your exact model.
Other tips from the review
- Medicines: acetazolamide is discussed for selected patients only, on medical advice. Don’t start anything without your clinician.
- Nasal dryness: dry mountain air plus oxygen can irritate the nose. Ask your clinician how to manage it, and avoid petroleum products with oxygen (fire safety).
- Pace yourself: watch for symptoms and check SpO2 with a reliable oximeter (saturation targets).
Medicare and your supplier
Under Medicare policy article A52514, during rental months 1–36 your home supplier must cover the rest of the month it has already billed, either itself or by arranging another supplier. For later months of a longer stay it’s encouraged to provide or help find a local supplier, and it can’t bill for months it doesn’t provide or arrange service. In months 37–60 it must provide or arrange service. Medicare pays only one supplier per rental month (CMS A52514). Call your supplier weeks ahead with your dates and address. Flying in? See FAA POC rules and renting a POC for travel.
Pre-trip checklist
| Task | Why |
|---|---|
| Clinician visit; ask for an altitude plan (rest, exertion, sleep) | Your needs may change at altitude |
| Confirm device altitude rating | Manuals above |
| Arrange supply with your Medicare supplier | A52514 travel rules |
| Pack batteries and a backup plan | Battery life |
| Know when to descend or seek care | Resting SpO2 under 85% or worsening symptoms (review) |
Verdict
Denver is manageable for many people with COPD if they plan. If you’re hypoxemic at home, assume you’ll need more support at altitude, especially at night, and get specific settings from your clinician. Prefer continuous flow if you’re at risk, confirm your devices’ altitude ratings, and line up your supplier before you go.
Related: cruising with oxygen, switching Medicare oxygen suppliers, Medicare home oxygen coverage.
See also: Salt Lake City altitude guide.