Douglas L. Kladder, Director CERTI Active Soil Depressurization has proven to be a very reliable means by which radon laden soil gas can be reduced from indoor environments. In its simplicity, one can
CERTI offers the largest variety of on-demand courses across the U.S., and always puts the student first: Take your courses as they fit into your schedule. Learn in the comfort of your own home, at your own pace. Work for an hour in the morning or the evening or wrap up a CE course in one or two days: It’s your choice!