Get Your Answers at Mold Mentor’s FAQs How long does it take to get the mold report back from the lab? Mold Mentor provides next business day mold reports from InspectorLab. Are all molds dangerous or just black mold? "Black Mold" is not a scientific name for a type of mold. Any mold that has grown in your home should be taken seriously. Is bleach an effective solution to kill mold? No. Bleach can cause mold to accelerate growth as bleach is approximately 93% water.