Johnsons 4fleas Room Fogger (Twin Pack) with (I.G.R) contains permethrin, s-methoprene and tetramethrin. It kills fleas and other insects e.g. ticks, ants, cockroaches, earwigs, silverfish, ither bristletails, centipedes, spirders & beetles on contact. It also prevents hatching eggs developing into fleas. This fogger protects carpts, soft furnishings and pet bedding for up to 7 months. This room fogger (with IGR) contains permethrin and s-methopreneand is designed to kill fleas and other insects e.g., ants,cockroaches, earwigs etc. Johnsons 4fleas Room Fogger Twin Pack – Flea and Insect Control The Johnsons 4fleas Room Fogger Twin Pack is a powerful, easy-to-use room treatment designed to eliminate fleas and other household pests. Each fogger contains Permethrin and S-Methoprene (IGR), working effectively to kill adult fleas and prevent eggs from hatching. It’s a complete treatment solution that also targets ants, cockroaches, earwigs, and more, helping to maintain a pest-free home environment. Key Features: Dual-Action Formula : Contains Permethrin to kill fleas on contact and S-Methoprene (IGR) to inhibit the development of eggs into adult fleas.