KAX CF10373 Premium HEPA Cabin Air Filter for Volkswagen

The KAX CF10373 Premium HEPA Cabin Air Filter is a direct-fit replacement that captures ultrafine particles and reduces odors for Volkswagen and Audi models while improving airflow.

If your car’s interior air feels stale or you want better protection against fine dust, pollen, and exhaust odors, this KAX ProSeries cabin filter is built to exceed basic OEM filtration. Designed to match original dimensions precisely, the CF10373 installs under the glove box and uses a dual-layer HEPA and activated carbon matrix to trap 0.1–0.3 μm particles and neutralize common odors. The unit is single-use (non-washable, non-reusable) and supplied in a protective box for a secure fit and clean handling during installation.

Which vehicles does the CF10373 fit?

This filter is intended for a wide range of Volkswagen and selected Audi models where the OEM specification matches CF10373. Verify fitment against your vehicle’s year and model before purchasing.

• Volkswagen: Jetta (2005–2018), Passat (2006–2010, 2012–2022), Tiguan (2009–2017), Beetle (2012–2019), CC (2009–2017), GTI (2006–2014), Golf (2010–2014), Eos (2007–2016), Rabbit (2006–2009), Golf R (2012–2013), R32 (2008).
• Audi: Q3 Quattro (2015–2018), Q3 (2015–2018), A3 (2006–2013), A3 Quattro (2006–2013), TT (2008–2009), TT Quattro (2008–2015).
• Installation location: under glove box; confirm shape and dimensions before ordering.

How does the KAX HEPA filter improve cabin air compared to standard filters?

The CF10373 uses a certified HEPA-compliant media combined with a high-capacity carbon layer to remove fine particulates and reduce odors more effectively than conventional paper cabin filters. Independent testing shows a significant uplift in particle capture and odor absorption versus basic OEM parts.

• Particle capture: reduces 99.9% of 0.1–0.3 μm particles.
• Odor control: dual-layer carbon matrix targets common cabin smells.
• Performance gain: tested to outperform standard filters by about 35% in filtration efficiency.

Will this filter affect my car’s heating and cooling performance?

KAX engineered the CF10373 to lower airflow resistance so the climate system performs more efficiently while maintaining strong filtration. Reduced resistance helps preserve blower efficiency and can make air delivery feel stronger without extra strain on the fan motor.

• Optimized pleat design reduces airflow resistance by approximately 15%.
• Improved airflow balance supports consistent cabin heating and cooling.
• Designed to maintain OEM air volume with enhanced filtration.

How straightforward is installation and what are the product dimensions?

The filter is manufactured to exact OEM measurements for a tool-free install that typically takes under five minutes. It arrives boxed and ready to slot into the under-glove-box housing without trimming or modification.

• Installation: tool-free, under-glove-box location, tested for exact fit.
• Size: length 11.3 in × width 8.5 in × height 2.3 in; irregular pentagon shape.
• Care: single-use — not washable or reusable; replace per vehicle manufacturer recommendations.

Who is this for? The KAX CF10373 is aimed at Volkswagen and Audi owners who want a straightforward, high-performance cabin air upgrade that balances superior particulate capture with improved airflow. It’s a good choice for drivers sensitive to pollen, urban commuters exposed to exhaust and road dust, or anyone who prefers fresher-smelling cabin air without modifying the vehicle’s HVAC system. Always confirm model-year compatibility before purchase.