Raid® Concentrated DEEP REACH™ Fogger kills 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. Kills ants, roaches & spiders. Penetrates into cracks & crevices to kill bugs where they live & breed. Keeps killing for up 2 months.