General description vhbw offers a clever solution with this G4 / F7 air filter set, designed specifically for Wernig CA 70 ventilation devices. This 2-part kit ensures your ventilation appliance is ready for use again, providing effective filtration for cleaner air. Technical specifications Dimensions per filter (L x W x D): approximately 19 x 10 x 3 cm Filter class: G4 / F7 Type: pollen filter (F7) / coarse dust filter (G4) Folding: Z-Line Material: synthetic fibre Colour: white Weight: 35 g Compatibility and accessories Compatible with: Wernig CA 70 Replacement for: Wernig EFS CA 70 G4, 527005190 Installation Filters can be inserted quickly and without tools into the slide compartment of the ventilation unit. Usage The coarse dust filter (G4) removes hair, insects, sand, and other coarse dust from the air drawn into the unit. The pollen filter (F7) provides additional protection against fine dust and pollen. To maintain filter performance, the filters should be changed regularly.