Estimated helium required for Qualatex Bubble Balloons. 

15 Inch Bubble Balloon (Discontinued)

0.43 Cubic Feet

22 Inch Single Bubble Balloons

0.97 Cubic Feet

24 Inch Double Bubble Balloons

1.21 Cubic Feet

Deco Bubble Balloons

1.21 Cubic Feet*

Deco Bubble Balloons can be stuffed with balloons, confetti, feathers, etc. The amount of helium used in a Deco Bubble Balloon, is dependent on the number of balloon sizes used inside the Deco Bubble Balloon. The maximum helium required should be around 1.21 cubic feet.