NOVOVENT S.A. starts working in 1988 offering new solutions to the market. From the beginning the NOVOVENT catalogues try to be competitive, strong and flexible giving the possibility to choose the best option between a w......NOVOVENT S.A. starts working in 1988 offering new solutions to the market. From the beginning the NOVOVENT catalogues try to be competitive, strong and flexible giving the possibility to choose the best option between a wide range of products. In 1996, we patented the Multiflow Novovent System (M.N.S.). The combination of 5 different pitch angle, the three different impellers shape, different hub sizes and the number of blades allows a wide range of solutions. Since last years our technical department supported by our laboratory has been developing new products. The result of this work is the Serrated Novovent Concept (S.N.C.), applied to axial fans and in-line mixed flow fans. The S.N.C. gives to the equipment higher performance, energy efficiency and more silent.