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. High-efficiency HEPA filtration improves vacuum cleaner performance, expands suction capability, 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 a filtration efficiency of up to 99.97%. It helps reduce airborne dust while maintaining optimal 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. Easy and convenient filter replacement. 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 air dry thoroughly before reuse. Material: Plastic Color: As shown Package Contents: 2 x Filter 1 x Cleaning Brush