The ebm-papst fan filter assembly consists of an outer cover a filter pad, a mesh screen and a finger guard. The cover, mesh and finger guard is made of Zytel nylon resin. The finger guard allows the filter medium to be changed without the equipment having to be switched off. The pad achieves 60% dust particle retention. It is manufactured of white polyester type KS-22. The assembly is available with a length of 126mm and width of 126mm. This assembly is suitable for 119mm and 119mm fan size.