Test the COWAY Indoor Air Cleaning Device


Principal Investigator:
Petros Koutrakis, Professor of Environmental Sciences

Department of Environmental Health/Exposure, Epidemiology and Risk Program

Dates of Research:
June 1, 2008 — May 31, 2009


This study will use laboratory tests to evaluate the collection efficiency and capacity of the COWAY indoor air cleaning device. In order to do so, the study will use both biological and non-biological aerosols. More specifically, the study will use: 1) site-stream cigarette smoke (particles will be generated using a smoking machine); 2) Inorganic salt particles (ammonium sulfate will be generated by aerosolizing an aqueous solution, using a nebulizer); 3) Microscopic spherical solid glass beads (particles of density 2.48 will be aerosolized from an aqueous dispersion, using a nebulizer; 4) Elemental carbon (soot generated using a kerosene burner; 5) Pollen (pre-collected pollen will be purchased and will be aerosolized using a fluidized bed); 6) Indoor air particles from homes that have cats and dogs (these particles will be used to test the ability of the cleaning device to remove cat allergens and other indoor allergens).