Have outside ant problem, and this does not seem to stop them. Would not buy again for this purpose.
Expert response: Phantom does not repel insects from an area as it is non repellent which means they cannot detect it. It also is a slow kill so it has time to be carried back to other insects and spread through transfer. You will still insects for a time due to this. The only way to keep insects completely out of the home is to seal up all crack and crevices that allow them access inside. We have a great general pest prevention guide below that can help as well.