Cleenaire CAF10134 The Most Advanced Protection Against Bacteria Dust Viruses Allergens Gases Odors, Cabin Air Filter For Acura Honda (New High Airflow Version Available CAF10134A) Seven Stage Patented Protection From Bacteria, Dust, Viruses, Allergens, Gases, And Odors- The Most Advanced Cabin Filteration On The Market Both Sides Of The Filter Are Equally Protected With Activated Coconut Shell Carbon - NO MORE Dreaded Airflow Arrow! Reinforced Framing Around The Entire Perimeter That Provides Unmatched Stability And Sealing To Prevent Contaminated Air Bypassing The Filter Two Layers Of Activated Carbon, Four Layers Of Colbond Long Fiber, and One Electrostatic Nonwooven Needle Punch Cloth Provides Unmatched Filtration NOTE- Airflow Will Be Reduced Given Its Efficiency, Therefore This Filter Is Not For Extreme Climates Where High Airflow Is Needed ,( New High Airflow Version Just Released -Cleenaire CAF10134A ) This Filter Is Made For Those That Care About The Air They Breathe- Satisfaction 100% Guaranteed