The Prihoda ducts are an ideal solution for supplying air to swimming pools and other water facilities. These spaces have high air humidity and chlorine concentration, which can lead to corrosion on the sheet metal ducts and, consequently, poorer air in the room. Fabric offers cost-effective, corrosion-resistant supply solutions and adequate blowing of air-conditioned air in which condensation does not accumulate. They are also very popular in other sports facilities, for several reasons. When hitting the ball, the fabric is not deformed, while the soft and permeable material absorbs noise during sports events. Various colors can be chosen which additionally, in a fun and functional way, liven up the room. The small weight of fabric diffusers does not represent a significant load on the roof structure. Easy hanging allows for very fast installation in pre-existing buildings, where ventilation needs to be added or improved.