KAX CF11923 HEPA Cabin Air Filter for Lexus, Toyota

KAX CF11923 is a HEPA-grade replacement cabin air filter engineered to capture fine particles and odors for Lexus LX470 (1998–2007) and Toyota Land Cruiser (2006–2007).

Keep the air inside your vehicle cleaner without changing factory fitment or airflow performance. The KAX CF11923 uses a multi-layer, HEPA-style media with activated carbon and an electrostatic long-fiber layer to trap dust, pollen, smoke and interior odors while maintaining proper HVAC airflow. It installs behind the glove box in the same footprint as the original filter and comes packaged as a single boxed set ready for a direct swap.

How does this filter improve in-cabin air quality?

The CF11923 combines dense non-woven HEPA-style fabric with an activated carbon layer and electrostatic long-fiber media to capture a wide range of particles and reduce odors. Its five-layer construction increases filtration surface area without overly restricting airflow, helping the HVAC system perform effectively while filtering contaminants.

• HEPA-grade non-woven fabric captures ultrafine particles.
• Activated carbon layer absorbs odors and volatile organic compounds.
• Electrostatic long-fiber layer traps small dust and pollen particles.
• Five-layer design balances filtration and airflow for HVAC efficiency.

Will this filter fit my vehicle and how is it installed?

The CF11923 is sized and shaped to replace the factory cabin filter located behind the glove box on specified Lexus and Toyota models. Installation follows the same access point and orientation as the original OEM filter—no trimming or modification required.

• Fitment: Lexus LX470 (1998–2007); Toyota Land Cruiser (2006–2007).
• Location: behind the glove box, standard OEM replacement footprint.
• Dimensions: 11.9" length × 5.1" width × 0.8" height; rectangular shape.
• Packaging: single boxed set, ready for direct replacement.

How long does the KAX CF11923 last and how often should it be changed?

Service intervals vary by driving conditions, but replacing the cabin air filter annually or every 12,000 miles is a practical guideline to maintain air quality and HVAC performance. If you drive in heavy traffic, dusty or smoky areas, check and replace the filter more often to avoid decreased airflow and buildup of contaminants.

• Recommended replacement: every 12 months or 12,000 miles as a baseline.
• Shorter intervals advised in high-dust, pollution, or wildfire smoke zones.
• Non-washable and not reusable—dispose and replace with a new unit.

Does this filter affect HVAC performance or fuel economy?

The CF11923 is engineered to preserve normal HVAC airflow while increasing filtration efficiency; its long-fiber electrostatic media provides a larger dust-holding capacity compared with flat materials. Properly maintained cabin filters support efficient heating and cooling performance, while avoiding excessive restrictions that could stress the blower motor.

• Long-fiber structure increases dust-holding area without blocking airflow.
• Designed to match the OEM form factor and airflow characteristics.
• Regular replacement helps maintain HVAC efficiency and comfort.

Who is this for: The KAX CF11923 is for Lexus and Toyota owners who want a direct-fit, HEPA-style cabin air replacement that reduces fine particles and odors while maintaining factory HVAC function. It’s ideal for drivers in urban pollution, allergy-prone environments, or anyone who regularly carries passengers and wants cleaner cabin air without modifications.