The PARTICLE filter provides protection against odors, chemicals, gases and 99.97% of airborne pollen, dust and germs. This filter's unique structure is designed to filter high volumes of air while trapping even the smallest particles. It maintains maximum airflow because it's engineered to resist clogging. Particle filters minimize allergy triggers, viruses, and bacteria for a healthier home environment with high filtration efficiency. Particle filters remove 99.97% of airborne particles down to 0.1 microns, including pollutants such as pollen, dust, pet dander, mold spores, viruses, bacteria, fine smoke particles and more.