The true lifeline of any controlled environment is the under floor plenum. This plenum delivers cool air to your sensitive equipment. Unfortunately, because of gravity, the plenum is also the area most prone to dirt and dust. If allowed to accumulate, these contaminants will be swept up and carried to your equipment by the circulating air. The impact of contaminated airflow includes clogged circuitry, clogged fans, faulty tapes, increased risk of fire, accidental fire suppressant discharge, and can lead to employee health problems.