A cold spark machine looks almost identical to a real pyrotechnic fountain from the audience — but they work, cost and ship completely differently. This is the plain comparison event buyers ask for: how a cold spark machine (reusable hardware + titanium-zirconium granules) stacks up against a consumable gerb / fountain. Inside: whether "cold" sparks are really safe, which can go indoors, the fixed-machine vs per-show cost math, dangerous-goods shipping, permits, and when a wedding or stage should pick each.
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