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. True HEPA filtration improves vacuum efficiency, expands suction range, and helps 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 captures particles as small as 0.3 microns with filtration efficiency up to 99.97%. It helps reduce dust recirculation and supports improved airflow. Noise reduction of at least 20 dB. Easy to Use: Simply turn the center knob 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. In high humidity environments, allow the filter to air dry thoroughly before reuse. Material: Plastic Color: As shown Package Contents: 2 x Filter 1 x Cleaning Brush