Raid Concentrated Deep Reach Fogger uses a bug killing fog to kill roaches and fleas in the hard-to-reach areas of your home. The fog treats an entire room with residual killing action against roaches for up to 2 months. The fog covers an area of up to 5,000 cubic feet and can even dissipate into closets and small areas within a room.
I'm a 58 so I can't bend to reach those knooks and cranies in my house like I used to which is why I bought this fogger. We let these 3 loose in our house all at once and left for the day and when we came back we could visably see the bugs it killed laying on the floor. It says it'll last for 2 months, we are at 3 weeks and haven't had an issue yet **knock on wood** but we will see - maybe I'll reply back!