According to the ABC News Medical Unit, many allergens and irritants may be found in the workplace. While we have some direct control of the allergens in our homes, we may have less control in our daily work environment. At home you may control what or who comes in, as well as how often ventilation systems are cleaned, filters replaced, etc. Certain professions and the variety / numbers of people in the workplace are often a factor for not so obvious allergens. Being conscious of the following allergens may lower the risk for discomfort and lead to a happier workplace.