General description vhbw offers a G4 / F7 filter set in a 4-part pack designed for Wernig ComfortVent Q350, Q450, and Q600 ventilation devices. This replacement filter kit ensures your ventilation appliance is ready for use, effectively removing impurities from the air. Technical specifications Dimensions per filter (L x W x D): approximately 50 x 16 x 4 cm Filter class: G4 / F7 Type: coarse dust filter (G4) / pollen filter (F7) Folding: Z-Line Material: synthetic fibre Colour: white Weight: 319 g Compatibility and accessories Compatible with Wernig ComfortVent Q350 Compatible with Wernig ComfortVent Q450 Compatible with Wernig ComfortVent Q600 Replacement for part number 400502013 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. The pollen filter (F7) provides additional protection against fine dust and pollen. Regularly