VOLVO 30676413 ELEMENT AIR REFINER
Product Specifications
| VOLVO | 30676413 |
| VOLVO | 30630754 |
| VOLVO | 9171756 |
| MILES | AFC1121 |
| MILES | AFP1121 |
| MILES | AFW1121 |
The ELEMENT AIR REFINER is a pleated filtration element installed in the HVAC air intake path — typically behind the glovebox, under the dashboard, or in the fresh air inlet duct at the base of the windscreen — that removes airborne particulates, pollen, dust, soot, and on activated-carbon combination variants, gaseous pollutants and odours from the air supplied to the vehicle cabin by the blower motor. Standard particulate-only filters use a multi-layer electrostatically charged synthetic or cellulose medium with a filtration efficiency rated at 95–99% for particles above 5–10 microns, capturing pollen, dust mites, road dust, and brake particulate before they reach the cabin occupants. Combination filters add one or more layers of activated carbon granules or a carbon-impregnated medium between the particulate layers, adsorbing nitrogen dioxide, ozone, benzene, aldehydes, and other volatile organic compounds as well as capturing the particulate fraction. On vehicles with PM2.5-rated HEPA-grade cabin filters, the medium captures particles down to 2.5 microns including fine combustion soot from urban traffic.
This unit — VOLVO 30676413 — is manufactured to OEM-equivalent specifications: filter element dimensions (length, width, and depth), pleat count and medium grade, filtration efficiency rating, frame rigidity and seal lip profile for the filter housing, and on combination filters, activated carbon layer weight per unit area are matched to the original part. Supplied as a direct drop-in replacement for standard fitment. Available wholesale from 2.48 USD, MOQ 200 pcs, production lead time 97 days.
The cabin air filter is a consumable service item requiring replacement every 15,000–25,000 km or annually — whichever comes first — with the interval shortened to 10,000–15,000 km or every six months in urban environments with high particulate loading, heavy pollen seasons, or dusty road conditions. A filter that has reached capacity restricts airflow through the HVAC system, reducing blower output, promoting mould and bacterial growth on the wet evaporator surface behind the blocked filter, and allowing air to bypass the filter medium through gaps forced open by the increased pressure differential, defeating its filtration function entirely.
- Switch the blower off and set the HVAC system to recirculation mode before opening the filter housing — on systems where the filter housing is accessed with the blower running, particulate loaded on the old filter will be drawn into the evaporator housing when the filter is removed; switching to recirculation or off prevents airflow through the open housing during the replacement.
- Note the airflow direction arrow on the old filter before removing it and confirm the new filter's arrow is oriented in the same direction — cabin air filters are directional; the upstream face captures coarse particles and the downstream layers capture finer particles in a gradient density arrangement that is optimised for flow in one direction only; a reversed filter will load more rapidly and may shed captured particles into the cabin on the first blower cycle.
- Inspect the filter housing interior with a torch after removing the old filter — leaf fragments, insect debris, and seed material that have bypassed the inlet screen accumulate in the housing floor and will immediately contaminate the new filter if not removed; vacuum or wipe out the housing before inserting the new element.
- Check that the filter frame seats fully against all four walls of the housing without gaps at the corners or edges — a filter that is slightly undersized for the housing or whose frame has deformed in transit will allow unfiltered air to bypass the medium through the gap at the frame seal; press the filter firmly into the housing and confirm there is no light gap visible around the perimeter before closing the housing cover.
- Treat the evaporator core with an antibacterial HVAC sanitiser spray when replacing the filter on a vehicle where musty odour is present — introduce the spray through the fresh air inlet with the blower on low speed and recirculation off so the sanitiser coats the evaporator fins; a new filter fitted without treating the evaporator will develop the same odour within a short period as the existing mould colonies on the evaporator surface continue to grow.
- Install the new ELEMENT AIR REFINER (VOLVO 30676413), close the housing cover securely, switch the HVAC to fresh air mode and run the blower on maximum speed for 30 seconds to confirm airflow has returned to normal volume, then note the current mileage for the next replacement interval reminder.