| Subject | English | German |
| med. | pre-bypass filter | Pre-Bypassfilter |
| comp., MS | pre-filter | Vorfilter (A filter that excludes an event from further processing by Microsoft Operations Manager 2005. The event is not inserted in the database) |
| tech. | pre-filter | Vorfilter |
| commun., IT | pre-modulator filtering | Filterung vor der Modulation |
| tech. | travelling belt type pre-coat filter | Laufband-Anschwemmfilter |