Essential for travelers and mobile users, the Luna TravelPAP CPAP Machine 12V DC Adapter allows you to connect your CPAP machine to the vehicle outlets found in most cars, boats and trucks. This way, you can enjoy uninterrupted sleep therapy wherever your travels take you, or even when you're away from home for a day. The adapter features a user-friendly design with a plug for your CPAP machine and another for the vehicle's outlet, making it simple to keep your device powered during travel.