Made of high-strength and environmentally friendly material. Easy to install. Effectively filters fine dust. The filter screen helps maintain the sweeper's cleaning performance and reduces the penetration of dust, pollen, and other particles into the air. It is recommended to replace the filter every 1-2 months. Care Instructions: 1. Wash the filters regularly using warm, soapy water. 2. Ensure the filters are completely dry before reinserting (allow up to 24 hours). Replacement part numbers: Part 140113881019 Dust Canister Filter Part 140117409023 Filter Compatible models: For Pure F9 models: PF91-6BW, PF91-6EB, PF91-6EG, PF91-6PR, PF91-5EBF, PF91-5BTF, PF91-6BWF Color: As shown Material: Plastic Package Contents: 2 x Dust Canister Filters 2 x Filters Note: Light reflection and different displays may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.