This vacuum is a must-have for ANYONE in the automotive industry! With its impressive 5 CFM and 2-stage capabilities it does an excellent job of removing air and moisture from AC systems. The compact design is perfect for on-the-go work and the oil drainage feature is a handy addition .The only downside is that it can be a bit heavy to carry around for extended periods. Overall, this vacuum is a game-changer for any automotive professional..