The “Enclosure Tightness Test” or “Door Fan Test”. This system makes it possible to accurately assess the tightness of the room to be protected from fire by means of a fixed extinguishing system due to total flooding with gaseous extinguishing agent.

Pressures are generated and air flow rates are measured with the help of calibrated fans. These measurements will become a variable that represents the sum of all the leaks present in the room.

During a real discharge of the extinguishing agent, assuming the conditions that would occur with the help of a software based on the mathematical models approved in the design standards, the process is simulated and the Stay Time of the extinguishing mixture in the room is estimated.