I am not sure that Mold Off^® has ever been used to combat such a large-scale mold home-remediation project as this, as we took off lathe and plaster, ceilings… working from all angles. The question became, How much sweat equity are you willing to invest to make it happen? It cost us the $5,000 to have our contractor help us remove lathe and plaster – and to remediate some asbestos the environmental inspector had found – but the Mold Off^® and safety / ventilation equipment was a minor investment compared to the estimates for the job to be contracted out. It has now been a year since our initial water-disaster, but our home is mold free, thanks to your product and advice. Thank you for giving our home back to us.