Any reason not to just get a static inverter? Takes the 12v DC from the truck, puts out 120v AC. Small units will plug into cigarette lighter; larger may need to be wired in. Check specifications carefully; CPAP should not draw much power, but electronic devices like a smooth sine wave AC not the sq...

Thanks folks. Wife says she will back off on the Azelastine and try some Nasonex. Yes, she's well attentive to non-alergenic soaps and things.

- Shu (Hubby)

I'm having alergy problem with something at night, and have to take the maks off because of irritation on my face. Recently started using Azelastine HCl (137 mcg per dose) before bed and as needed through the night to keep nose clear. I do seem to develop reactions to any medication after a few uses...