Emergency Evacuation Sirens are a necessity at most work sites. Especially in factories, steel mills, drilling sites, or other such locations where there is a risk or danger, the evacuation sirens are a lifesaver.
An evacuation siren is a loud, ongoing sound that starts at the time of an emergency. Everyone in the range of the siren will hear the loud buzz. The protocol of these sirens is also something that all people in the work field knows. On hearing the siren, the workforce has to leave their work immediately, and head for the exit that would take them out of hazard. Emergency sirens can indicate fire threats or natural threats like earthquakes.
Also, by working safety law standards, it is binding for most organizations to ensure that they have the full mechanism of evacuations sirens at all hazardous sites.