alt Hacker NewsHalon systems are banned, at the international and federal level, and have been since the 1990s; so, modern DCs don't and can't use them.
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advisedwang • today at 5:52 PM
There's tons of substitutes, the ban on Halon wouldn't be why Jane St is using water.
Many people (like me) use "halon" when they are talking about general inert gas based fire suppression as there's not really a good short word for them otherwise.
There are lots of 'clean agent' fire suppression systems that are not actually "Halon". I suspect people still use it as a generic term.