This spray is not powerful enough to kill. Just gives 5 minutes sleep for the insect. I started using this and it never worked out. Its just a waste of money. After using it, youll see insects falls down and you think its dead. But after 5-10 minutes its again get up and do the nasty works around the home. Also the chemical used in the spray is allergic and causes headache. The odor is very bad for health. Also it requires more number of hits to keep your house out of insects which again cost you more money. I suggest you to try a different product than hit as its not the value for money and youll get health diseases.