The DreamStation Go Heated Humidifier is an attachment for the DreamStation Go Travel CPAP. With this fully functioning humidifier, you can say goodbye to dry mouth and wake up feeling refreshed. Features:Use with Distilled, Tap, or Bottled Water Universally-compatible with TubingLightweightAuto-adjusting Heat and MoistureUse with Distilled, Tap, or Bottled WaterIn addition to using distilled water, this is compatible with tap water or even bottled water to make traveling convenient and hassle-free. Universally-compatible with TubingThe humidifier works with 12mm (micro), 15mm (slim), and 19mm (standard) tubing, making it easy and convenient to use.LightweightAt just 0.75lbs, it keeps your suitcase light and easy to carry around when traveling.Auto-adjusting Heat and MoistureTo increase comfort, the humidifier works with your CPAP to provide optimal heat and moisture. The humidifier also turns off automatically when no water is present to ensure safety. *This is the humidifier only. This item cannot be billed to insurance. FSA/HSA cards can be used.