The ProBox flame barrier was inspected and tested by an independent organization according to UL requirement 1046. The requirements regarding flame penetration were clearly exceeded. Installing onto the machine is easily achievable. The load on the main filter system is reduced by coolant pre-separation directly at the machine. The ProBox series is modular in design and offers solutions for air flows from max 900 m³/h up to max 3600 m³/h at each module.