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 capability, and capture pet hair, oil residue, fibers, 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 filtration efficiency of up to 99.97%. It helps reduce dust release and supports improved air flow. 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 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 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