1. Description of the Air Dist
The Air Dist consists of a system of wires made of flexible fabrics, on which a number of holes were placed, the appropriate fabric permeability or different widths and number of gaps, constituting the air-separating nozzles, were used. The tests showed a relationship between the shape of the air stream and the adjustment of the outlet openings, therefore an elastic base material was chosen to implement the Air Dist system. This material also causes that at high air speeds the noise level of the installation is minimal. Material tests allowed to determine the features (fabrics used for the production of wires), i.e. moldability and resistance to destruction. Material properties have been recognized by certificates of recognized institutes (eg Bureau Veritas, PZH in Warsaw, Deusches Institut für Bautechnik in Berlin, Ministero Dell Interno in Rome, Laboratoire National D’essais in Paris).

2. The principle of operation
The principle of operation of the Air Dist system is based on the properties of isothermal air streams and not on isotherms present in the free space. The behavior of the air stream in the free space depends on the shape and

the size of the outlet and the speed of the stream. At the same time, there is the phenomenon of induction and pushing out. In the Air Dist system, these phenomena are used with the help of; the free space between the weft and warp in the material, the slits, a series of calibrated holes placed on the flexible duct. By means of these holes forming the nozzles, the optimal alignment between the induction and pushing phenomena can be selected, which makes it possible to achieve the objectives mentioned in the previous chapter.

3. Application of the Air Dist system
As explained in the description of the principle of operation, the Air Dist system allows the movement of large air masses in specific directions. Thanks to this property, various construction solutions are possible and overcoming obstacles dictated by the specificity of the installation for each building. The Air Dist system is mainly used in ventilation, heating and air conditioning installations. It is also possible to combine with other ventilation, heating and air conditioning systems with virtually no restrictions.

Separation of air in different zones of the room.
Air distribution in rooms with high dust.
Separation of air in combination with the precipitation method to improve the comfort of air in the workplace.

4. Designing the Air Dist system
The Air Dist system is designed for each implementation individually depending on the needs and characteristics of the rooms. The diameters of the outlets are designed based on a mathematical model that uses the behavior of a free air stream supplemented with laboratory tests and measurements made on existing installations. In the design phase, all characteristic installation and ambient data are entered into the model calculations