Frequently Asked Questions (FAQs) FAQs for Product: Remstar PR1 Pro & System One Humidifier 1. What is the power usage and can it be run on a 12V battery with an inverter? (Posted: 9th Feb, 2012) Question & Answers for Product: Remstar PR1 Pro & System One Humidifier Q. What is the power usage and can it be run on a 12V battery with an inverter? (Posted: 9th Feb, 2012) A. Draw is around 1 amp, or 4.5 amp using the humidifier. They can be run off an inverter, but you are better off using the more efficient converter available from Philips-Respironics. Back to Top Submit A New Question Can't Find The Answer You're Looking For? Submit Your Question Below: Related Product:  Remstar PR1 Pro & System One Humidifier Your Question:  (Please enter One Question Only! You can ask as many questions as you like, but do not combine them into one post!) Your Reply Email Address:  Security Step:  Enter the text to the Left in the space below: [ CLOSE WINDOW ]