Our clearance testing follows the same rigorous methodology as our initial air quality testing, using professional Air-O-Cell cassette technology. We collect air samples from previously affected areas, common living spaces, and an outdoor control sample to establish the current baseline. All cassettes are sent to an independent certified laboratory—the same type of accredited facility used for pre-treatment testing—for microscopic analysis that identifies and counts mold spores by genus. The lab compares your indoor levels against the outdoor control. The standard we hold ourselves to is indoor mold levels lower than outdoor levels. You receive the complete lab report showing the data for every sample location. When we perform clearance testing after our own VaPURE treatments, we’re holding ourselves to the same independent standard—we don’t grade our own work with an internal checklist, we let the lab data speak for itself. The home has to be empty during the VaPURE treatment, with people, pets, and plants out. Most families are back the same day.