If you manage an equestrian facility, you are concerned about dust control. Equestrian instructors, trainers, and animals can spend long hours each day in an indoor arena and are dependent on clean air for optimum performance. Studies performed by the University of Colorado and Penn State University show that equestrian trainers are more likely to develop bronchitis symptoms if their primary work environment was an indoor arena as opposed to an outdoor arena. Dust from arenas contain organic and inorganic materials and can be a serious health issue for trainers and animals.