SU will develop a single-stage air filtration technology for particle and gaseous pollutant removal. The work will determine the proper mixture ratio of hybrid sorbent media according to the pollutants in the air streams. The attachment method and size of activated sorbent powders to be applied on the fiber of a particle filter will be studied. SU will evaluate the effects of operational environmental conditions (including temperature, humidity, and airflow conditions) on the combinatorial filter removal efficiency and service life.