A pre experimental one group pre-test post-test study was under taken to assess the effectiveness of IEC package on knowledge regarding prevention of byssinosis among the selected cotton industry workers at Coimbatore. The content validy was obtained from the experts in the field of nursing, community medicine. The sample consisted of 50 cotton industry workers who are working in the weaving and spinning section. The non probability convenice sampling technique was used in this study. A structured questionnaire and IEC package was prepared to assess the knowledge of cotton industry workers. 58.2./. of employees knowledge increased moderately after successful completion of IEC programme.

Keywords: IEC package; Cotton industry; Cotton industry employees; Knowledge; byssinosis.