Compressor systems play an important role in diving operations, making equipment knowledge and maintenance practices valuable subjects for technical training. Compressor training can introduce learners to system components, operating principles, routine inspections, and servicing requirements. ASSET Technical Training provides learning opportunities for people interested in compressor maintenance and diving equipment technology. Understanding breathing-air quality requirements and following appropriate maintenance procedures are also important in diving environments. For dive centre personnel and aspiring technicians, which compressor maintenance skills are most useful in everyday work? Exploring relevant training courses can help identify technical subjects that support professional development and equipment care.