High-performance carbon filter outperforms all 1" odor reduction filters in the market on odor removal, particle capture, and airflow. Most effective at removing household odors created from cooking, pets, cleaning chemicals, kids, etc., and removes odors from the air passing through the filter. Electrostatically charged media also removes allergens such as pet dander, household dust, bacteria, pollen, mold spores, and dust mite debris. 3 month life on both particle and odor removal. Gray label.