Helium bottle for decorating your birthday party 1 helium bottle Disposable bottle Volume: 0.36m (equivalent to 360 litres of helium) 1 filling valve Estimated filling quantities: Latex balloons (23 cm): up to 50 balloons (float time: approx. 5-8h) Latex balloons (25 cm): up to 40 balloons (float time: approx. 10h) Latex balloons (28 cm): up to 25 balloons (float time: approx. 12h) Foil balloons (45 cm diameter): up to 20 balloons (float time: approx. 1 week) Foil balloons (80 cm high): up to 15 balloons (floating time: approx. 1 week) Foil balloons (100 cm high): up to 10 balloons (floating time: approx. 1 week) Please note: these figures are not binding. They serve as a guideline if the gas cylinder has been operated correctly. The floating time may vary depending on the room and outside temperature.