NISSAN B727C-79925 Cabin Air Filter

The NISSAN B727C-79925 (alternative OEM number: 272752W625) is a premium quality genuine pollen filter (cabin air filter) that ensures maximum purity of the air flowing into the vehicle's passenger compartment. Genuine OEM parts guarantee precise fitment and optimal performance matching factory specifications.

Technical Features and Operating Principle

The pollen filter is an integral component of the vehicle's heating, ventilation, and air conditioning (HVAC) system. Its function is to provide a physical barrier against contaminants entering from the outside environment. The filter effectively removes the following impurities from the air:

• Pollen and allergens
• Fine dust particles and soot
• Industrial gases and smog particles
• Microscopic debris from road wear

Technical Specifications

• Manufacturer: NISSAN (Original Equipment Manufacturer)
• Part Number: B727C-79925
• Replacement / Alternative Numbers: 272752W625
• Filter Material: Multi-layer, high-efficiency synthetic composite fiber
• Installation Location: Passenger compartment air intake system (depending on the vehicle model, behind the glove box or at the firewall)

Signs of Wear and Importance of Replacement

Over time and with accumulated mileage, the pollen filter gradually becomes clogged. A saturated filter can no longer perform its function effectively, leading to the following issues:

• Weakened Airflow: The blower fan delivers weak airflow even at maximum speed settings.
• Window Fogging: Windshields fog up quickly and stubbornly due to inadequate airflow and accumulated humidity.
• Unpleasant Odors: Mold, fungi, and bacteria settling inside the filter emit a musty, foul odor when the air conditioning is activated.
• Health Risks: Increased concentration of allergens within the cabin can cause sneezing, eye irritation, and driver fatigue.

The manufacturer-recommended replacement interval is typically 15,000 km or 1 year (whichever comes first), with more frequent replacement advised when operating in dusty or heavy urban traffic conditions.