Bosch Air 4000 Replacement Filter, 3-in-1, White

This replacement air purifier filter is designed to trap airborne particles and reduce indoor odours as part of routine maintenance for a Bosch Air 4000 unit. Rated at 99% filtration efficiency, the 3-in-1 cartridge combines multiple filtration media into a single insert for simultaneous replacement. It is engineered specifically for the Bosch Air 4000 and will not fit other models. The white housing matches the host appliance's finish. Installation requires no additional hardware or adapters.

Bosch recommends replacing the cartridge after approximately 9 months of use, depending on air quality and operating hours. The filter is fully removable, allowing tool-free swap-out when service life ends. Each pack ships as one complete cartridge, covering a single service interval. The insert seats directly into the existing bay inside the main unit. Regular replacement helps maintain consistent airflow and filtration performance over time.

• Pre-filter stage intercepts larger debris before it reaches the downstream HEPA media
• HEPA filtration system captures fine airborne particulates
• Activated carbon anti-odour filter reduces household odours and volatile gases
• Country of origin: China
• Designed for interior placement within the host air purifier