Brus water bubbler. Saves the environment large amounts of unnecessary plastic: Søren Refsgaard developed a simply elegant device for the Danish brand Stelton that should not be missing in the office or at home these days. While the carbonic acid cartridge (CO₂ cylinder) is hidden in the slender column, the amount of carbonic acid to be dispensed can be intuitively adjusted on the knob on top when turned clockwise. But only when the supplied bottle has been screwed onto the unit's cap may the supply of carbon dioxide be opened. After bubbling and before removing the bottle, the supply must be closed by turning the knob anti-clockwise. Simple to operate, the good-looking Brus water bubbler by Stelton will be the best friend for all those who love "bubbles" - the Danish name! - pure or with flavour!