Purchase helium cylinders from a licensed industrial gas supplier
Rent or lease helium tanks from welding or gas distributors
Buy small helium canisters from party supply stores for balloons
Order helium online from reputable gas retailers
Contact local scientific or medical gas suppliers for specialty helium grades
Check hardware stores that sell balloon helium tanks
Use recovered helium from approved industrial recovery systems if you have access to one
Follow all local laws, safety rules, and storage requirements when obtaining helium