Research on reducing airborne dust concentrations in livestock buildings is reviewed. Research has concentrated on removing dust from the livestock environment by methods such as filtration, ventilation, sweeping floors and spraying with oil and water. These methods have proved moderately successful, but the few studies that mention costs suggest that they are uneconomic. Little has been done to reduce the generation of dust. Feed has been identified as the main source of dust in livestock buildings. Research has shown that feed dustiness can be reduced by changing composition or applying coatings. However, further research and development are needed to apply this research to practical feed formulations. Feeders and feed delivery systems need to be developed to reduce their contribution to dust generation. The benefits in terms of animal production need to be quantified before the economics of the various dust control methods can be evaluated.