Filter for Zehnder ComfoAir 350/550, refill for reusable frame, ISO Coarse / ISO ePM10 (G4/M5), 2 Pieces

This product is found in the ComfoAir 350 and the ComfoAir 550.  The filter set (refill pack) protects your indoor air from particles that can trigger allergic respiratory reactions, such as pollen and particles from woodstoves - ePM10 (M5) / CRS (G4).  The pack contains;