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Laser Safety

Safety here is specific, not ceremonial: which materials are never safe (chlorinated plastics — chlorine gas becomes hydrochloric acid), how extraction is sized, why a fire blanket lives within reach, and why a running laser is never alone in the room.

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Materials You Should Never Laser Cut (and the Safe Swaps)

Never PVC (chlorine). Faux leather, ABS, foams, fiberglass and PTFE also appear on university and maker no-go lists. Here is each material, the stated hazard, who said it, and a safe swap.

Mara Vance· Oct 20, 2026· 9 min

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