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 specially designed for large spaces such as living rooms, offices, factories, kitchens, etc. HEPA filtration helps improve vacuum efficiency, expand the absorption range, and capture pet dander, cooking oil residue, fibers, hair, pollen, dust, and fine particles. Good Air Circulation: The replacement filter is a true HEPA filter that can capture particles as small as 0.3 microns with a filtration efficiency of up to 99.97%. It helps reduce dust in the air while maintaining effective 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 cleaner. 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 accumulation. If the filter becomes damp, allow it to air dry thoroughly before reuse. Material: Plastic Color: As shown Package Contents: 2 x Filter 1 x Cleaning Brush