Complete waste of my time and money using Alan. I had mold in my AC fancoil and he would not turn it on to take the air sample from the the source of the mold. I've since determined with 2 additonal companies that the unit did have mold. He botched the test and the mold spore levels were not accurate. Would never recommend him and I'm in the process of reporting him for his incompetent unprofessional work.