Keep the Quest 70 pulling moisture at full capacity The Quest 70 Pre Filter (700962) is a direct replacement filter for the Quest 70 Overhead Dehumidifier, catching dust, coco and soil particles and dried plant debris before they reach the coils. In a working grow room those airborne particles build up fast, restricting airflow and forcing the unit to work harder while removing less moisture. Fitting a fresh 28cm x 23cm pre-filter on a regular schedule keeps airflow strong and moisture removal consistent through vegetative growth and the bloom stage. Key Benefits Purpose-built replacement sized 28cm x 23cm for the Quest 70 dehumidifier Protects internal coils from dust, media particles and plant debris Maintains strong airflow for efficient, consistent humidity control Steadier grow room RH reduces mould risk during flowering Quick swap with no tools required Why a clogged filter wrecks humidity control A blocked or dirty filter chokes airflow through the dehumidifier, so it removes less moisture and struggles to hold a stable humidity level, raising the risk of mould in bloom and slowing plant development. Replacing the pre-filter regularly keeps air moving through the coils and moisture removal predictable, protecting the unit and your environment. How to Use Turn off and unplug the Quest 70 before replacing the filter. Locate the filter compartment and remove the old pre-filter. Slide in the new 28cm x 23cm pre-filter, sitting it flat and secure in the slot. Restore power and run the dehumidifier as normal. Inspect regularly and replace whenever it looks loaded with dust. Technical Specifications Type: Replacement pre-filter Dimensions: 28cm x 23cm Compatibility: Quest 70 Overhead Dehumidifier Part number: 700962
