According to NFPA 72, what is the maximum loudness for an audible fire alarm notification appliance?

The correct answer reflects the National Fire Protection Association (NFPA) 72 guidelines, which specify the maximum sound level for audible fire alarm notification appliances as being 110 decibels. This standard is established to ensure that fire alarm systems are audible and can effectively alert occupants in a building to evacuate during an emergency. The specified loudness level balances the need for a clear and effective warning signal with concerns regarding potential hearing damage and discomfort from excessively loud alarms. By setting the maximum at 110 decibels, this allows for sufficient audibility in various environments while also being mindful of safety and health implications.