The Daring Dufas wrote:

-snip-
out of things. I get them refilled at the local dry
ice/CO2 dealer. I purchased a high flow regulator at
the HVAC supply house and use the CO2 to run air tools,
inflate tires and clear clogged pipes and coils.

Why run your tools on CO2? What is the advantage over just
filling from your compressor, or the local gas station?

Jim