Due to the Dutch commercial spirit and the economically very interesting location of the Netherlands, many materials are imported and stored here from overseas areas. One of these products are cocoa beans, which can be found in very large cocoa sheds in the various port areas. These cocoa sheds are high and extremely dusty spaces, where the dust forms a very sticky substance. Due to its sticky nature, a fire detection system quickly becomes unusable due to contamination.When Stratos aspirating systems are equipped with optional blow-back systems that periodically clean the entire pipe system independently, blockages in the pipes are prevented, so that these systems can continue to function for a long time without additional service work.