Because your material may be combustible, an important safety feature to look for in a laser system is a high temperature sensor and alarm. If an unusually high temperature is detected in the laser processing area, the system is designed to shut down the laser source and trigger an audible alarm. Be sure to double check with your manufacturer as this feature is not a mandated requirement. For added safety, some laser systems can be configured with an optional fire suppression feature. While these safety features are helpful, it is important that you never leave your laser system unattended during use and monitor it for safe operation.
-Thea Sander, Universal Laser Systems