Lightweight and highly portable, ResMed’s therapy devices and masks are designed to accompany you and your child, wherever you travel. Traveling with your therapy equipment has never been easier. With a standard universal power supply, most ResMed devices can be used throughout the world and even on an airplane. You can rest assured that you and/or your child's therapy equipment won’t get in the way of planning a vacation. ResMed ventilators also give you the option of an external battery source called the RPS II to provide greater mobility.