PUREFLOW PC4579X Cabin Air Filter

PUREFLOW PC4579X is a multi-layer cabin air filter engineered to trap dust, pollen and odors before they reach the interior of compatible Ram, Jeep, Mazda and other listed vehicles.

Driving in heavy traffic, construction zones or on dusty roads exposes your cabin to airborne particles and smells. The Premium Guard PUREFLOW PC4579X replaces the factory cabin filter with a four-layer media that combines particle capture and an activated-carbon layer for odor control, helping preserve HVAC performance and improving in-car air quality.

How does this filter reduce dust and pollen inside the cabin?

The PUREFLOW PC4579X uses a staged media design that progressively captures larger and then finer contaminants. Larger debris is intercepted by the outer layers while the inner, finer layer traps small particulates such as pollen and fine road dust.

• Four-layer filtration captures a broad particle size range
• Outer layers block leaves and road grit to protect HVAC components
• Inner fine-fiber layer targets pollen and PM particles

Will this filter help with unpleasant outside odors?

Yes — an integrated activated-carbon layer adsorbs common external odors from exhaust, traffic and urban sources. The carbon layer does not chemically neutralize odors, but it reduces odor levels for a fresher cabin scent between replacements.

• Carbon layer reduces gasoline and exhaust smells
• Suitable for daily commuting and urban driving conditions
• Works passively — no electrical or chemical components required

Which vehicles will this cabin filter fit and how does fitment affect performance?

PC4579X is manufactured to match OEM dimensions for numerous Ram truck model years and select Mazda and Jeep models, ensuring a proper seal and consistent airflow. Correct fitment maintains optimal HVAC efficiency and prevents unfiltered air bypassing the media.

• Fits Ram 1500, 2500, 3500, 4500, 5500 model ranges listed by year and engine
• Also compatible with select Mazda CX-7, Mazda 6, Jeep Wagoneer and Grand Wagoneer models
• Replaces TYC part numbers 800142C and 800222P — verify your vehicle with the Vehicle Filter Lookup

How often should I replace the PUREFLOW PC4579X for best results?

Replacement frequency depends on driving conditions: city commuting, dusty roads or heavy pollen seasons will require more frequent changes. Inspect the filter at regular service intervals and follow vehicle manufacturer recommendations for replacement cadence.

• Check during routine oil or HVAC service intervals
• Replace sooner after extended travel on unpaved roads or during high pollen months
• Regular replacement preserves cabin air quality and HVAC efficiency

Who is this for: Drivers and fleet owners who want a direct-fit replacement that improves cabin air comfort without modifying the vehicle. PUREFLOW PC4579X is aimed at Ram and compatible Mazda/Jeep owners seeking a higher-filtration aftermarket option with odor control, plus independent mechanics and service shops that need a reliable, vehicle-specific cabin filter for routine maintenance.