ERMI is widely excepted as the most accurate testing method available but is also the most expensive method. ERMI tests are taken by pulling a sample of dust and mold from an area of carpet using a complex vacuum and filter system. These tests are more accurate than air quality tests but the price of the testing is sometimes as expensive as the treatment itself. Either way you choose to go, we can do it at Pure Maintenance of Southern California! Give us a call today!