Bosch P3933WS Workshop Particulate Cabin Air Filter

The Bosch P3933WS Workshop Cabin Air Filter is engineered to provide cleaner, fresher air inside your vehicle by preventing dirt, dust, and environmental contaminants from entering through the HVAC system. This particulate filter offers 99% filtration efficiency at 3 microns or greater, significantly improving air quality for all passengers.

Advanced Multi-Layer Filtration Technology:

• First Layer: Non-woven pre-filter captures larger contaminant particles before they reach the inner layers
• Second Layer: Electrostatically charged microfiber layer attracts and holds smaller, more elusive particles
• Third Layer: Non-woven cover layer adds structural stability while providing an additional barrier against harmful elements

Key Features:

• High pleat count provides greater surface area for superior filtration capacity
• Mold-resistant media ensures durability and long-lasting performance
• Foam perimeter gasket (where applicable) prevents unfiltered air from bypassing the filter media
• Constructed with spun-bound polyester and synthetic melt-blown fibers for maximum efficiency

Regular replacement of your cabin air filter helps maintain optimal airflow through your vehicle's heating and air conditioning system while reducing allergens, odors, and airborne pollutants. Bosch recommends inspecting cabin air filters at least once per year and following your vehicle manufacturer's recommended replacement intervals.