[NH_Bulldog]

My CPAP uses 110vac or 12-24vdc. Any time you use an inverter to change DC to AC and then back to DC you lose a lot of energy. It is best to get the manufacturer’s pure sine converter and run straight off DC. I installed a 12v power point next to my bed and it works great. If this is a onetime thing or a rare event, I would just use the 12v port on a battery booster pack. It will last two nights and you can always charge it off the vehicle if it ran low