Premium Guard PureFlow HEPA Cabin Filter PC99334HX – Fits Audi Q5, Q7, A4, A5 Quattro & Porsche Cayenne

Cleaner cabin air with four filtration stages

Discover the Premium Guard PureFlow HEPA Cabin Filter PC99334HX, engineered to help keep your vehicle’s interior air fresh and clearer. This multi‑stage filter works quietly as you drive, supporting a more comfortable ride by targeting particles, odors, and irritants that can travel through the HVAC system.

What makes PureFlow PC99334HX different

• Stage 1: High‑efficiency HEPA media captures microscopic particles before they enter the cabin.
• Stages 2–3: Activated carbon layers work with baking soda to reduce gases and neutralize odors.
• Stage 4: An additional filtration layer adds further protection for your breathing space.
• Lower pressure drop: about 10–15% less resistance than a PUREFLOW Advanced filter, helping ventilation feel smoother.

Real‑world benefits you may notice

• Fresher cabin air on daily commutes and long trips alike.
• Odor dampening for environments with varying smells, from urban traffic to open windows after rain.
• Steady airflow that supports consistent climate control, especially in high‑demand seasons.

Vehicle compatibility and fit

The PC99334HX version is designed for a broad range of model years and trims, including 2018–2022 Audi Q5, 2017–2022 Q7, 2017–2021 A4, 2017–2022 A4 Quattro, 2018–2022 A5 Quattro, and 2019–2022 Porsche Cayenne. If your car is among the listed Audi family or Porsche Cayenne lines, this filter is intended to align with your cabin air system.

Maintenance and installation tips

For ongoing performance, consider replacing the filter at least twice a year, or sooner in dusty or odor‑heavy environments. Before installation, verify the correct orientation and ensure a snug fit to maximize filtration media effectiveness. A proper seal helps maintain consistent airflow and filtration performance.