Does the TDI cave diver certification allow the use of gases other than air?

The TDI cave diver certification does not permit the use of gases other than air during the course of standard cave diving practices. This means that, as part of the certification, divers are trained to use air only for direct exploration and navigation within cave environments. The emphasis is on developing skills and safety procedures that are integral to cave diving using air as the breathing gas.

This restriction ensures that divers focus on the fundamental techniques and risk management required in cave diving scenarios without the additional complexities that come from using alternative gases. While advanced practices may eventually allow for the use of enriched gases or other mixes under different training programs, these are not part of the standard cave diving certification. This focus helps maintain a clear understanding of the diving environment and minimizes potential hazards related to gas management in confined spaces.