For optimal performance, we recommend cleaning the pre-filters with a vacuum or cloth weekly, or as often as needed.
Replace the ComboFilters when the filter replacement light turns red on the panel or when notified in the Blueair app (recommended filter lifetime approx. 6-12 months if the air purifier is on 24/7 depending on indoor pollution levels).
Use only original genuine Blueair filters suitable for your model to maintain performance over time and ensure your warranty remains intact.