Background and Objectives: The efficient and optimum application of antiseptics, disinfectants and sterile supplies plays a key role in controlling and extirpation of infections. Hospitals are considered as a source of infection transmitting center because of their special situation. The current study was conducted to investigate all kinds of disinfectants used in Tabriz hospitals.

Material and Methods: This was a cross-sectional study, conducted on seven important hospitals of Tabriz in March 2017. A questionnaire about disinfectants was filled. By visiting infection controlling units, environmental health, disinfectants and antisepsis warehouse and different parts of the hospitals, and performing interviews, the required information was collected and analyzed.

Results: The results of this study demonstrated that each hospital used special kinds of antiseptics according to individual services; although there were some similarities. About 57% of the hospitals in this study used only domestic disinfectant products and others used both imported and domestic products. In the studied hospitals,Sodium Hypochlorite, Alcohol, Saya sept HP and Deconex 53 plus were the most common used disinfectants.

Conclusion: The results of this study showed that although holding environmental health training courses in hospitals is part of operational plans of the infection control committee, but since ward assistants and housekeepers perform disinfecting, increasing the awareness of the staff about the incidence and prevalence of nosocomial infections, the importance, dangers, human and financial losses related to these diseases and the effective role of these staff in proper removing of environmental pathogens and reducing nosocomial infections possibility are expected to be felt.