An experimental biomass filter system was built by attaching a full-scale testing chamber to an existing 4-room swine nursery facility to investigate various biomass filters. Four independent biomass filter chambers were designed, each receiving the same odour-laden exhaust air. Total dust concentrations, temperature, relative humidity, airspeed through the filter media, and ventilation rate were measured and analysed. Results indicated that simple biomass filtration strategies can be effective in partial removal of dust particles for ventilation exhaust air odour removal. Dust removal varied between 45 and 75% with subsequent odour threshold levels dropping by 50-90% between inlet and outlet of the filter. This was accomplished while still maintaining pressure drops within current accepted levels fora axial-type exhaust fans common to livestock housing.