What type of fire alarm is NOT acceptable?

A visual alarm only is not acceptable as a standalone fire alarm system because it does not effectively alert all individuals in a given area, especially those who are hearing impaired. Fire safety protocols typically require that fire alarms provide multiple forms of notification to ensure all people can respond quickly and safely during an emergency.

Audible sirens, public address systems, and direct voice alarms all include auditory alerts, which are crucial for immediate attention in emergency situations. While a visual alarm can enhance the warning system, it must be supplemented with audible signals to guarantee that everyone is aware of the fire threat. Without this combination, the effectiveness of the fire alarm system is compromised, potentially leading to delayed evacuations and increased risk during a fire event.