Bosch HEPA Cabin Air Filter 6009C — 3-Layer HEPA-Grade Filtration, Electrostatic Melt-Blown Media

The BOSCH 6009C HEPA Cabin Air Filter is a multi-layer cabin filter engineered to capture ultrafine particulates and improve the in-car air you and your passengers breathe.

Indoor air quality matters on every drive. Bosch engineered the 6009C to use a dense, melt-blown electrostatic layer plus an additional cotton layer and structural support to trap dust, pollen, smoke and other fine particles that otherwise enter the passenger compartment. The filter construction follows Bosch’s HEPA design intent and aligns with industry HEPA testing methods, delivering filtration performance comparable to laboratory HEPA benchmarks used across the Bosch cabin filter range.

How does the 6009C reduce allergens and dust inside my vehicle?

This filter combines an electrostatically charged melt-blown layer with a high-capacity cotton media to intercept and hold particles down to submicron sizes. The dense media structure increases capture efficiency while the electrostatic charge attracts particles that mechanical filtration alone might miss.

• Multi-layer design traps pollen, dust, pet dander and fine particulates
• Electrostatic melt-blown layer improves capture of submicron particles
• High-capacity cotton layer boosts holding capacity for longer service life

Is the 6009C tested to HEPA standards and what efficiency can I expect?

Bosch designs this cabin filter to meet HEPA-level performance criteria. While Bosch lists specific HEPA test results for several part numbers, the 6009C follows the same HEPA-grade media technology and manufacturing quality that yields up to 99.97% efficiency at 0.3 microns in Bosch’s HEPA-rated filters.

• Media engineered to HEPA-quality specifications (ISO 29463-class guidance)
• Bosch HEPA-range filters demonstrate up to 99.97% capture at 0.3 microns in lab testing
• Designed with structural ribs to preserve integrity and consistent performance

How long does the BOSCH 6009C last and when should it be replaced?

Longevity depends on driving conditions, but Bosch recommends a routine replacement schedule to maintain air quality and HVAC performance. In typical use, plan for an annual swap or follow mileage service intervals to avoid increased airflow restriction or reduced filtration efficiency.

• Recommended replacement at least once every 12 months or per maintenance interval
• High-dust or heavy-pollen environments may require earlier replacement
• Regular replacement keeps HVAC airflow efficient and cabin air cleaner

Will the 6009C affect airflow or introduce fragrances?

The filter is built to balance high filtration with stable airflow; internal ribs maintain its shape to minimize collapse and preserve consistent air passage. Bosch HEPA cabin filters provide particle removal without added chemical odor neutralizers or fragrances, so there’s no scented coating to off-gas into the cabin.

• Structural ribs increase durability and maintain airflow performance
• No chemical odor neutralizer included — clean air without added scents
• Designed to fit OEM-style housings for proper sealing and air path control

Who is this for? The BOSCH 6009C HEPA Cabin Air Filter is for drivers who prioritize cleaner cabin air — commuters, families, allergy sufferers, and anyone traveling in urban or high-pollen environments. If you want an OEM-compatible replacement that emphasizes submicron particle capture, structural stability and a scent-free experience, the 6009C is designed to meet those needs while fitting routine vehicle maintenance schedules.