Helium Canister - Fills Up To 30 Balloons

9" Latex balloons inflates upto 30; Lasts upto approx 6 to 8 hours 10" Latex balloons inflates upto 20; Lasts upto approx 6 to 8 hours 11" Latex balloons inflates upto 15; Lasts upto approx 6 to 8 hours 12" Latex balloons inflates upto 15; Lasts upto approx 6 to 8 hours 18" Foil balloons inflates upto 12; Lasts upto approx 1 week Latex balloons(the rubber ones) will only float for 6-8 hours unless you are using Hi-Float. 34" Foil balloons inflates upto 12; Lasts upto approx 3-4 days Supershape balloons inflates upto 1-2; Airwalker balloons inflates upto 1-2 40- 46" Number Balloons inflates upto 2-3 On average, latex balloons have a flotation time of approximately 6-8 hours, which can vary depending on the size of the balloon and the room temperature.To ensure that your latex balloons stay inflated for the duration of your party or event, we recommend inflating them 1-2 hours before the scheduled start time. This allows for a fresh and visually appealing display that will impress your guests.