INAVAP base unit - hand made and comes in five different colors, Hand-crafted wooden stem - designed to conceal hot parts, 14-volt power supply, Detailed instruction guide. - North American Style - Convection technology is different than conduction because vapor can be generated immediately and delivered much closer from it's point of origin. A conduction vaporizer (glass-dome vap) uses a long hose where essential vapor can be lost to condensation and evaporation before it can be inhaled. With an INAVAP convection vaporizer, vapor will go directly into your lungs as soon as it is produced without wasting your product. The INAVAP works by loading the product into a short stem and drawing heated air through the unit from the stem. An INAVAP user can draw in as much vapor as desired and not worry about essential oils condensing or evaporating. The INAVAP will not overheat and is guaranteed to maintain a constant temperature appropriate for vaporizing.