The best emergency notification software automatically sends out mass alerts to affected workers. This can be done via text message, email, phone, or a push notification on a mobile app. Once an employee receives a notification, such software titles usually provide a link to acknowledge the alert. This enables human resource professionals to account for every employee and follow up with unresponsive workers. In a life and death situation, such as during a toxic gas leak, it is crucial for employees to confirm that they are safe or, at the very least, aware of the situation.