Premium Guard PureFlow HEPA Cabin Air Filter PC99474HX — Fits Toyota & Lexus (2022–2025), True HEPA + Activated Charcoal

Premium Guard PureFlow HEPA PC99474HX is a multi-layer cabin air filter that removes 99.97% of microscopic particles while reducing odors for a cleaner vehicle interior.

If you drive a compatible Toyota or Lexus, installing the PureFlow HEPA filter upgrades your cabin air quality with a layered filtration system that captures fine particulates and adsorbs gases and smells. Designed to match OE fitment for select 2018–2025 models, this replacement filter focuses on reducing pollen, dust, smoke residues, and common odors without altering factory controls.

How does PureFlow HEPA improve the air inside my vehicle?

The PureFlow HEPA combines four filtration stages to trap particles down to submicron size and to neutralize odors and gaseous pollutants. Its true HEPA media captures extremely small allergens while an activated charcoal layer adsorbs VOCs and smells, supported by odor-absorbing baking soda.

• True HEPA layer: captures up to 99.97% of particles at 0.3 microns
• Activated charcoal: adsorbs gases like common urban exhaust and odors
• Baking soda infusion: helps neutralize persistent smells
• Multi-layer design: balances filtration with effective airflow

Will this filter fit my Toyota or Lexus model?

PC99474HX is manufactured to match the dimensions and mounting of many late-model Toyota and Lexus cabin filters for a direct replacement. Check vehicle compatibility against year and model lists to confirm exact fit before ordering.

• Fits: 2022–2025 Toyota Tundra; 2024–2025 Tacoma; 2023–2025 Sequoia
• Also fits: 2018–2025 Lexus LS500 series and 2024–2025 Lexus GX550
• Compatible with select 2024–2025 Toyota Land Cruiser models
• OE-style shape for straightforward swap-in installation

How often should I replace the PureFlow HEPA cabin filter?

Replacement frequency depends on driving conditions and environment. Under typical city and highway use, plan for annual replacement; in high-dust, heavy-pollen, or polluted areas, inspect the filter more often and replace sooner to maintain airflow and filtration performance.

• Standard guidance: replace every 12 months under normal use
• High-dust or heavy-pollen areas: inspect every 6 months
• Reduced HVAC performance or noticeable odors: replace immediately
• Follow vehicle service interval recommendations for best results

Does using a HEPA cabin filter affect climate control performance?

High-efficiency media can introduce a small increase in airflow resistance compared with basic paper filters, but PureFlow is engineered to preserve proper ventilation and heater/AC operation. The multi-layer construction aims to deliver superior contaminant capture while maintaining the cabin comfort system’s functionality.

• Designed for balanced airflow and filtration efficiency
• Manufacturer notes minor restriction possible from dense HEPA layer
• Helps protect HVAC components by reducing particulate build-up
• Compatible with factory blower speeds and controls

Who this is for: The Premium Guard PureFlow HEPA PC99474HX is aimed at drivers who want significantly cleaner cabin air—especially allergy sufferers, urban commuters, and families sensitive to dust, smoke, and odors—while keeping a simple, direct-fit replacement for supported Toyota and Lexus models. If your priority is capturing very small particles and reducing cabin odors without altering factory systems, this filter offers a practical upgrade.