Tetramethrin is widely used as an insecticide in various settings to control pests. It is commonly found in household insect sprays, mosquito coils, and vaporizers to effectively eliminate flies, mosquitoes, and other flying insects. Due to its fast-acting nature, it is ideal for quick knockdown of pests in residential and commercial spaces. Additionally, it is used in agricultural applications to protect crops from insect infestations. Its low toxicity to mammals makes it a preferred choice for indoor use, ensuring safety for humans and pets while maintaining high efficacy against targeted insects.