QPE supplied a proprietary pneumatic actuated 2m x 2m vent louvre for ventilation control into an underground heavy vehicle workshop. As opposed to standard Drop Board Regulators (DBR), the Client required a system to provide fine control over ventilation flows. The system provided allowed the louvres to be adjusted to any tilt angle required. In addition to the Louvres, QPE designed, specified and supplied an AFFF system for fire detection and fighting to the workshop.