Treating inside a structure is often necessary to eliminate most types of pests. After-all…most folks don't call unless they are seeing something inside. We take our customers safety and comfort very seriously. Most materials used in our industry have a label. On every label is a buzz word classifying the material. The buzz words start at "Caution" then go to "Warning" and then "Danger". All materials WE use inside a structure are labeled "Caution" meaning when applied according to label are very safe and effective. We always follow the label!