PharmaGard Compounding Aseptic (CAI) and Containment (CACI) Isolators provide a sterile work environment for the compounding of hazardous and non-hazardous drugs. PharmaGard creates true HEPA filtered laminar airflow at 20 air changes per minute within both the work zone and interchange areas to assure ISO Class 5 conditions. Utilizing laminar flow assures a continuous stream of HEPA filtered air across the work zone and interchange areas assuring sterility and minimizes cross contamination. Once the air is through the work area, the airflow is split from front to rear. The airflow then proceeds under the work tray, up the rear divider panel where it is recirculated or exhausted.