Applied to machines and equipment that generate mist with or without suspended particulate. The Feno-DB-FM line utilizes washable and permanent metal filters and is equipped with a machined die-cast aluminum die-cast rotor. Without screen and rotor filter, this system avoids the accumulation of particulate in the rotor and its imbalance. The washable metal filters represent a considerable saving to the user, as it reduces their operational costs (less frequency of preventive maintenance) and gives full protection to the environment.