I have been a professional remediator for the last 15 years. Before we found Mold Bomb Fine-Particulate Fogger, our company was struggling with post clearance testing. Traditional air purification was just not doing the job effectively. I needed a versatile particulate suppressant that could be used alongside residential belongings without damaging them. We found the answer in the Mold Bomb Fine-Particulate Fogger. Ever since our company started fogging with this product, we have not failed a clearance test yet. Thanks Biocide.