An exit only device is a safety device that allows people to leave a building or area in an emergency while preventing others from entering. Exit only devices are often used in combination with other safety devices, such as fire alarms and sprinkler systems. Exit only devices come in a variety of shapes and sizes, but they all serve the same purpose: to provide a safe and easy way for people to exit a building or area during an emergency. Some common types of exit only devices include doors, windows, and stairways. Exit only devices are an important part of any safety plan, and they can help save lives in the event of an emergency. If you're looking for a way to improve the safety of your home or business, consider installing exit only devices.