"I have found an interesting way of rerouting your new halon fire suppression system all the way from Hazmat storage to personnel quarters. "
Dr. Elizabeth Weir[src]

The Halon Fire Suppression System is an Tau'ri-installed system on Atlantis. The system uses Halon gas, which is highly toxic, to suppress fires that may be started on Atlantis.(SGA: "The Long Goodbye")

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