And in Dr. Rosen’s Surviving Mold Illness Part 3, Case Studies of Procedures that Work: We provide Case Studies of procedures for assessment/remediation that are not only proven, widely used, common sense procedures, but also are relatively inexpensive compared to those featured by Shoemaker. You test the indoor air for mold/fragments before remediation to make sure that there is a airborne mold problem… to make sure there is a need for remediation. And if there is, after remediation, prove by post remediation testing of the indoor air, that the remediation was successful and has eliminated all significant airborne mold/fragment exposure.