Disorders of smell are generally difficult to diagnose and treat, often because of a lack of knowledge and understanding of this sense and its disease state. An alteration in smell may be life threatening at times like impairment of detection of smoke in a fire. Anosmia can occur through exposure to environmental toxins. Exposure to toxins accounts for 1- 5% of all olfactory disorders. A case report of a sudden anosmia as a result of accidental exposure to “otapiapia”, local organophosphate based pesticide is presented.