Simply open the Steam Inhaler and fill with hot tap water. Add one VapoPad scented pad for each use, to release essential oils vapors that penetrate nasal, throat and sinus passages to help easy breathing Compact, easy to store at home and ideal for travel use. Suitable also during cough and cold Leak proof design prevents spills Dishwasher safe Two VapoPads menthol scented pads included This is a plastic container where the user needs to add hot water and essential oils/scent pad, there is no heating ability, and even though it is unsafe to add boiling water (for obvious reasons), hot water will still evaporate and carry the vapours to the user., Weight: 0.4409375 pounds, Manufacturer: Vicks