Winter storms bring lines down after dark, which is exactly when the machine is working. The humidifier stops, the air stops, and the choice is to take the mask off and sleep badly or sit up waiting. Small portable CPAP batteries help for a night, but a multi-day rural outage outlasts them, and many people forget to keep them charged.
If your sleep physician treats CPAP as essential for you, make sure that is recorded, keep your power company's medically dependent registration and their advice current. A home system is a backup alongside that, not a replacement for it, and it is not a hospital-grade supply.
There is no engine, so nothing starts up and rattles outside the bedroom. The battery and inverter in UPS mode keep the machine powered without a gap, and the fuel cell quietly recharges the battery from stored hydrogen. The only by-product is water, which goes back into the loop, so there are no fumes near an open window.
How it works →
Some users run CPAP without the heated humidifier on battery packs to stretch them out, and wake with a dry throat. With a whole-house supply there is no need to ration. The machine, the humidifier, a bedside lamp and the heat pump in the bedroom can all carry on, and the morning jug and toaster still work while the lines are being repaired.
It is designed not to. The battery and 15 kW inverter run in UPS mode, so the supply carries on without a break and the machine does not restart. Check with your equipment supplier about your exact model.
There is no engine and no fuel run. Equipment like pumps and fans makes some sound, but it is designed to sit outside and stay quiet, nothing like a petrol generator under the window.
Yes, if your clinician recommends one. Keep your power company's medically dependent registration and your clinician's advice. The home system is a backup alongside them, not a replacement for a medical plan.
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