Sources: NOAA NCEI 1991–2020 normals for El Paso airport; manufacturers’ manuals linked below. HHZ didn’t test any devices; the limits below come from manufacturers’ manuals.
El Paso temperatures (airport, 1991–2020)
| Month | Normal high | Normal low |
|---|---|---|
| May | 88.7°F | 62.1°F |
| June | 97.1°F | 70.6°F |
| July | 95.8°F | 73.0°F |
| August | 94.0°F | 71.8°F |
| September | 88.3°F | 65.4°F |
Station elevation: 1,194.2 m (about 3,918 ft).
Device limits
| Device | Operating temperature | Operating humidity | Source |
|---|---|---|---|
| ResMed AirSense 11 | 41–95°F | 10–95% RH, non-condensing | User guide |
| ResMed AirCurve 11 | 41–95°F | 10–95% RH, non-condensing | User guide |
| Inogen Rove 4 / Rove 6 | 41–104°F | 15–90%, non-condensing | Rove 4, Rove 6 |
| CAIRE FreeStyle Comfort | 41–104°F | 15–95% RH, non-condensing | Manual |
| Oxlife Independence | 50–104°F | 10–95% at 82.4°F | Manual |
Winter normal lows (34.5°F in January) are below the 41°F minimum operating temperature in most manuals, so keep devices in heated rooms in winter too.
Practical steps
| Situation | Guidance from the documents |
|---|---|
| CPAP at night | Normal summer lows are well inside the 95°F limit; use air conditioning |
| POC outdoors at midday | Keep within the 104°F operating limit; seek shade and cool breaks |
| Device left in a car | Storage ranges go to 158°F (AirSense 11, Rove 6); operation doesn’t |
| Dry air | Within humidity ranges; see CPAP dry mouth |
| Summer outages | Power outage plan |
Verdict
El Paso’s summer daytime heat exceeds CPAP operating limits, so keep equipment air-conditioned and plan outdoor oxygen use around the hottest hours.
Related: Albuquerque altitude guide, Tucson heat guide, Houston hurricane plan.