Bosch P3704WS Workshop Particulate Cabin Air Filter

The Bosch P3704WS is a Workshop Series particulate cabin air filter engineered to deliver cleaner, healthier air inside the vehicle cabin. Designed as a direct OE replacement, this filter captures airborne contaminants before they enter the heating, ventilation, and air conditioning (HVAC) system.

Key Features:

• High-efficiency particulate filtration — captures 99% of dirt, dust, pollen, and other environmental contaminants at 3 microns or greater
• Spunbond polyester and synthetic meltblown fiber media — engineered for superior filtration performance and long service life
• Direct OE replacement — designed to meet or exceed original equipment specifications for a precise, no-modification fit
• Injection-molded frame (where specified by OE) — adds structural stability for peak performance throughout the filter's service life
• Particulate filter type — effectively blocks dust, pollen, and fine airborne particles for noticeably improved in-cabin air quality
• Sold individually

Bosch recommends inspecting your cabin air filter at least once per year, or following your vehicle manufacturer's recommended service intervals. Regular replacement helps maintain optimal HVAC airflow and ensures the cleanest possible air for passengers.