[hazardous] 1 Small disposable helium gas. Easy to carry portable disposable and recyclable. This Helium canister inflates up to: 30 x 9" Latex balloons or 16 x 11" Latex balloons or 12 x 12'' Latex balloons or 14 x 18" Foil balloons or 1 x 36" Latex balloon Float time for latex balloons : 5-7 hours. Float time for foil balloons : 3+ days.