FilterMaster Cabin air filter helps to protect your health by trapping pollen, bacteria, road dust and other abraded materials that enter through the vehicles ventilation system and improving the quality of the air you breathe while in your vehicle. FilterMaster unique microfiber web material removes virtually 99.99 percent of these harmful particles, as well as reducing road dust. Regularly replacing your cabin air filter can offer relief for asthma, allergy and hay fever sufferers. It also helps to protect the performance of your air conditioning system. High Efficiency Activated Carbon Filter shown above, its material is Activated Carbon which removes Smoke, Odor, and Particle, which includes Pollen, mold spores, dust, bacteria, fumes, etc. Including ozone, benzene, formaldehyde and acetaldehyde