How Much Power Does a CPAP Machine Use? | Hart Medical Equipment
Posted On: October 17, 2025 by Hart Medical Equipment in: CPAP

If you use a CPAP machine for sleep apnea therapy, understanding its power consumption is essential—especially when planning for travel, battery backup, or emergency preparedness. At Hart Medical Equipment, we offer a wide range of CPAP devices and accessories, including power solutions that keep your therapy uninterrupted.
CPAP Machine Power Usage: What to Expect
Most CPAP machines consume between 30 to 90 watts per hour, depending on the model and features. Here's a breakdown:
- Standard CPAP machines: ~30–60 watts/hour
- CPAP with heated humidifier: ~60–90 watts/hour
- CPAP with heated tubing: Up to 100 watts/hour
Over an average 8-hour night, this translates to 0.24 to 0.8 kWh, which costs less than $5 per month in electricity for most users.
Power Accessories Available at Hart Medical Equipment
We carry several power accessories to support your CPAP therapy:
-
🔋 Transcend PowerAway Micro Battery – $349.95
A compact, travel-friendly battery designed for uninterrupted sleep therapy wherever you go. -
☀️ Transcend Solar Battery Charger – $319.99
Harness solar energy to recharge your CPAP battery—ideal for camping or off-grid use. -
🔌 ResMed AirSense 11 Power Supply – $39.99
A reliable replacement or backup power supply for ResMed AirSense 11 machines.
Explore more CPAP accessories including tubing, filters, and travel cases to complete your setup.
CPAP Power and Travel Considerations
If you're traveling or preparing for a power outage, here are a few tips:
- Use DC power when possible to reduce energy loss from AC conversion.
- Disable the humidifier to extend battery life.
- Keep batteries warm in cold environments to maintain efficiency.
- Choose FAA-approved batteries for air travel.
Final Thoughts
While CPAP machines are relatively low in power consumption, having the right accessories ensures your therapy continues smoothly—whether you're at home or on the go. Hart Medical Equipment offers trusted solutions to keep your sleep therapy powered and protected.
Need help choosing the right power setup? Contact us or visit our CPAP Accessories page to explore your options.
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