Penetrates into cracks and crevices to kill bugs where they live and breed. Raid® Concentrated DEEP REACH™ Fogger kills listed bugs where they hide and keeps killing with residual action for up to two months. Treat an entire room (25’ x 25’ with an 8’ ceiling) with our penetrating bug-killing fog that reaches deep into hard-to-reach areas, cracks and crevices. Read label before use. Use only as directed.