Danfilter Ventilation Filter Set for Nilan FU 25 & FU 28

The filters in this filter set fit Nilan FU 25 and FU 28. The set contains: 2 pcs Standard filters. Two filters are needed for a complete filter change—one for the intake side and one for the exhaust side. The standard filter is a coarse filter, ideal for removing dust and dirt from the air to protect the system's technology. For finer air filtration, we recommend upgrading to the Pollen Filter Set. The Pollen Filter Set contains 1 pc Pollen Filter and 1 pc Standard filter. With a Pollen Filter on the system's intake side, you achieve finer filtration of the incoming air, creating a healthier and cleaner indoor environment. Approximate lifespan: 3 months. Width (mm): 330. Height (mm): 525. Depth (mm): 15. Filter type: Standard filter. Filter class, Standard: G4 - ISO 16890 EMP10 >75%.