The VMA stainless-steel micro-perforated panels allow air to exit, and so therefore for excess liquids to be treated, collected, filtered and diverted to the main tank, helping to minimise costs. This new system created by VMA – with the aid of a centrifugal high-power modifiable ventilator – allows users to choose the correct volumes of air for each mass of foiliage. This in turn means that the substance can penetrate deep into the deepest mass of foiliage, so maximising the coverage of the foiliage wall. The result is a reduction of the drift effect, and so greater respect for the environment.