glo is a Tobacco Heating Product (NOT a vaping device) conceived to provide an experience similar to a cigarette, but much more safely (90% fewer toxicants than a standard cigarette). It is a battery powered electronic device which contains a heat engine to sequentially and controllably heat consumables to 240 degrees C. The glo experience brings multiple benefits: no burning or ash, and less odor on the hands, hair, clothes and surroundings. Despite such complexity in a compact hand-held product, the design focus never wavered from minimal simplicity. A single button, coupled with a pulsing LED ‘halo’, delivers both ease in use and status feedback