The study examines the efficacy and safety of indoor residual spraying as a method for controlling dengue vectors. Deltamethrin at a concentration of 2.5% WP (wettable powder) was used as the active ingredient. The research was conducted at the Pak Emirates Military Hospital. The objective of the research was to evaluate the effectiveness of this intervention in reducing the population of mosquitoes that transmit dengue. The study has been completed and its results contribute to knowledge about dengue control options. Indoor residual spraying represents one of the available methods to reduce dengue incidence in households.