Fits Bosch models BSG81313, BSG81335, BSG81365UC, BSG81396UC, BSG81360UC, BSG81370UC, BSG81380UC Premium Series.Recommended for allergy sufferers. Purifies the discharge air so that it is cleaner than the normal ambient air. Filters small enough particles to comply with the European standard for air hygiene of HEPA class 12.Change every 6-12 months, depending on usage.
