Yes, but empty helium canisters cannot be left at or thrown away by WonderLab. Helium is a precious and nonrenewable resource, so we encourage you to find alternatives to purchasing a helium tank. If you do choose to bring a helium tank to inflate balloons, it is your responsibility to operate it safely, bring the tank home with you, and know how to responsibly reuse or recycle it. Compressed gas can be dangerous when handled improperly and helium tanks are not allowed to be disposed of in the party room trash cans.