To maintain optimal performance, FFUs require regular maintenance and cleaning. Routine maintenance is essential to keeping FFUs working efficiently and preventing contamination from building up in the filter.

The recommended maintenance for FFUs includes replacing the filters every six months, cleaning the fan blades monthly, and ensuring that the unit is operating at the correct speed. Failure to perform regular maintenance can result in a significant reduction in filter efficiency and increase the risk of contamination in the cleanroom.

FFUs are essential in maintaining a controlled and sterile environment in cleanrooms. Without FFUs, airborne contaminants such as dust, bacteria, and mold would accumulate, leading to product contamination and reduced yields.

In addition to preventing contamination, FFUs also provide a positive pressure environment to ensure that the air in the cleanroom is directed away from the entry points. Positive pressure creates a barrier that prevents contamination from entering the cleanroom, ensuring that the manufacturing process is not interrupted.