Sleep shouldn’t depend on the nearest outlet. The Zopec Explore battery family brings true online UPS protection to CPAP with models sized for everything from red-eye flights to multi-day outages. Plug in 24/7 and if utility power drops, AutoSwitch keeps therapy running without a blip. Pick your capacity by how you use comfort features: Silver level for CPAP-only, Gold for humidifier use, and Platinum for humidifier + heated tube. Every model delivers pure-sine AC and universal compatibility—just plug in like a wall outlet. Lighter, FAA-friendly options (4000/5500/5700) suit travel, while high-capacity units (8000/Oxygen) anchor home backup. For the longest nights away, reduce humidity/heat and confirm your personal runtime at home before you go. Explore 4000: 130 Wh, 1 AC outlet, Silver UPS level; FAA carry-on OK; ~12–16 hrs CPAP-only. Explore 5700: 160 Wh, 1 AC outlet, Silver UPS level; FAA carry-on OK; ~16–24 hrs CPAP-only; ~7–8 hrs with humidifier (no heated tube). Explore 5500: 160 Wh, 2 AC outlets, Gold UPS level; FAA carry-on OK; designed for ~8+ hrs with humidifier (no heated tube). Explore 8000: 288 Wh, 2 AC outlets, Gold UPS level; not FAA-approved; ~8–12 hrs with humidifier or ~24–32 hrs CPAP-only. Explore Oxygen: 576 Wh, 2 AC outlets, Platinum UPS level; not FAA-approved; ~8–12 hrs with humidifier + heated tube. Travel notes: Batteries ≥101 Wh must be in carry-on; FAA max is 160 Wh (so 8000/Oxygen stay home). Runtime basics: Humidifier reduces runtime ~50–60%; humidifier + heated tube ~70–80%. Manufacturer Product Number: 214000C, 215500C, 215700C, 218000C, 21160KC.