This is the world's smallest Travel Humidifier. At only 0.4 lbs Jerry is very light weight and an ideal companion for travel, keeping your dry hotel room at a pleasant and healthy humidity. Jerry can also be used wherever you need a small but still powerful personnel humidifier: in your office, kid's room or any other small space. Just add your own water bottle, plug the unit in and enjoy clean, moist air. Jerry inclues a transcontinental AC adapter and exchangeable plugs which allows Jerry to be used throughout North America, Europe and Asia. Fits most standard PET bottles (max 17 oz).