The Expo Technologies range of room pressurizing units are designed for Type Z (Ex pz) pressurization of rooms in accordance with NFPA 496 2008 and ATEX IEC/EN 60079-13 Draft. At the heart of each system is Expo’s control logic which provides for pressure monitoring and air inlet fan control. The room pressurization systems are designed to be used in Class I Div 2 or Zone 2 locations making the interior of the room a general purpose location. The room system can adequately pressurize and ventilate rooms with 1 door (1800 cfm) or 2 doors (3000 cfm). For additional ventilation capacities consult the factory. Click here for more details.