09/29/2026
A voice evacuation system that people can hear isn't necessarily one they can understand. NFPA 72 requires speech intelligibility, not just volume, for life safety announcements, and a system that's audible but garbled can leave people confused about which way to go during an actual emergency.
Midwest Alarm Services designs and tests sound systems for intelligibility across every zone of a facility, not just decibel level, so instructions are actually understood when they matter most.
Talk to our team about your facility's sound system design: https://hubs.la/Q04yCs8d0