Compatibility: This filter is compatible with Bosch vacuum cleaner Unlimited Gen2 Series 8 (BSS825CARP) (not for Series 6). Compatible number: 12023349. Suitable for models: BBS1, BBS8, BCS1, BCS8, BKS8. Please confirm your vacuum cleaner model before purchase. Focus on Fine Cleaning: This replacement filter is designed for large spaces such as living rooms, offices, factories, kitchens, etc. HEPA filtration helps improve vacuum efficiency, expand suction range, and capture pet hair, oil residue, fibers, pollen, dust, and fine particles. Good Air Circulation: The replacement filter is a true HEPA filter that captures particles as small as 0.3 microns with a filtration efficiency of up to 99.97%. It helps reduce dust recirculation and supports efficient airflow. Noise reduction of at least 20 dB. Easy to Use: Simply turn the knob in the middle to replace the filter. Keep the filter dry during use. Allow it to air dry completely before reinserting into the vacuum. Cost Saving: The package includes 2 HEPA filters made from high-quality materials. It is recommended to replace the filter every 3 months, depending on usage and dirt levels. If exposed to moisture, allow the filter to dry thoroughly before reuse. Material: Plastic Color: As shown Package Contents: 2 x Filter 1 x Cleaning Brush