Helium Balloons Please be advised due to a venue requirement, there are to be no helium balloons at the Expo. During Expo General InfoCanberra Expo Related Pages:First AidTractors, Forklifts and VehiclesEvacuation Assembly AreaDangerous Substances FormSecurity at the ExpoRigging at the ExpoConduct of ExhibitorsFood & Beverage for Exhibitors during ExpoTemporary Structures at ExpoDeliveries during Expo