*These air cleansing techniques present "equivalent ventilation." Equivalent ventilation describes the quantity of clean up air needed to lower germs by exactly the same amount. Air cleansing will not be a substitute for least outside air demands in national, point out, and native setting up codes. : artificial respiration of https://ventilation80012.develop-blog.com/45105421/the-2-minute-rule-for-ventilation-ductwork