Layer 1: Fiber paper layer(primary filter)
Layer 2: Premium Activated carbon Fiber
Layer 3: Electrostatic adsorption layer
Layer 4: Activated carbon Fiber
Layer 5: Fiber paper layer (protective layer)
The Premium filter element can filter out particles and dust from the outside, and adsorb harmful material to maintains a clean and healthy environment for the cabin. HEPA Honeycomb AC filter can intercept: 1.Smog 2.Formaldehyde 3.Polluted gas 4.Dust 5.Fine dust 6.Pollen 7.Smell Product Included: 2 Pieces of Activated Carbon Cabin Air Filters (Original Style, Paper Type) Product Dimensions: 9.5 x 5.5 x 1.1 inches (Each Filter)