Bioaerosols refer to aerosols comprising particles of biological origin or which have biological activity which may affect living things through their infectivity, allergenicity, toxicity, pharmacological, or other processes. Such agents present in the indoor environment include plant and animal derived allergens and toxins such as pollen, plant fibers, peptidoglycans, and endotoxins. Interest in bioaerosols has dramatically increased in the last decade because of the potential risk that they may aggravate existing lung conditions, spread infectious agents, and even cause cancer