Our construction business recently used this product at a home undergoing intense mold remediation in an area of Long Island affected by Hurricane Sandy. Immediately after the storm, our company removed all of the porous building materials that we could, and then treated the remaining wall studs and plywood that remained part of the frame of the home. Air movers were used, dehumidifiers, ozone generators, HEPA vacuums and antimicrobial spray-on products were employed during the initial and ongoing antimicrobial remediation of the home. All seemed to be remediated, until the ground thawed and microbes began to become an issue once again. We scoured the internet and decided to give the mold bomb a try – this time in the areas that we could not reach with traditional remediation methods: the crawlspace and foundation of the home. We are so pleased to report that your directions of use of the Biocide Mold Bomb product (3 cans in the house, 3 cans in the crawlspace of this 2000+ sq. ft. home) appears to have completely cleared all traces of microbes in this home. We are currently finishing spackle without the ill-health effects caused by the vapors of proliferating molds, under the house.