What does an umbilical system in diving typically provide?

The umbilical system in diving is crucial for facilitating the diver's connection to the surface. It serves as a lifeline that supplies essential resources directly to the diver while they are submerged. One of its primary functions is providing a continuous supply of breathing gas, which is vital for the diver's safety and operational effectiveness. This system ensures that the diver has an uninterrupted flow of air or other suitable breathing gas necessary for conducting tasks underwater without the need for tanks.

Moreover, the umbilical may include other features such as communication lines, power supply, and support for tools, but its most critical role is the provision of breathable gas. This allows divers to work at greater depths and for extended periods while minimizing the risks associated with decompression and air supply issues, ultimately enhancing their performance and safety in underwater operations.