Ask whether the model is a sealed helium display or a ground-standing inflatable powered by a continuous blower. That answer tells you which equipment questions to ask before you compare models.
Read the product description for the inflation method
The Arizona Balloon Company guide describes helium-filled spheres and custom shapes that are tethered. It treats continuous-blower inflatables as a separate product format. If a listing only says inflatable, ask which method the exact model uses.
Ask for the operating parts list
Get a written list of the equipment included for the quoted model. Ask what the supplier expects you to arrange at the site and who will explain setup and shutdown.
Describe where the display should work
Give the supplier the location, available space and what a visitor should notice. Ask which format fits the approved position and what needs to be confirmed before use.