Polypropylene Construction, PurairADVANCED Ductless Fume Hood, 34 inch / 863mm Nominal Width, Includes TRAY-P10XL, (DWYER Airflow Meter Delete), Standard Depth, AUTOCAL Airflow Display, 230V 50Hz, UK Cord set (unless specified). Requires Minimum One ASTM-XXX Main Filter and One Optional ASTS-XXX Safety Filter