http://www.firehouse.com/news/10853902/medical-gas-leak-shuts-massachusetts-building
self venting room? when the room hears a hiss, it self ventilates? -- You received this message because you are subscribed to the Google Groups "massfire" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/massfire?hl=en.
