Product Description Laboratory operations involving weighing, mixing and dispensing hazardous powders can now be performed safely and economically with the Esco Powdermax 1 (PW1) Powder Weighing Balance Enclosure. The enclosures unique design maintains balance stability to 4 decimal places without compromising containment. Features Double-hinged sash mechanism with arm ports sash with 13 sloping to help minimize glares and reflections allows easy access to work zone without risking exposure from chemical fumes allows higher sash opening for effortless cabinet loading Filtration System Main Filter: HEPA Filter Baffles Improves airflow and prevents fume accumulation in the work area. Phenolic Worktop The solid work surface minimizes transmission of fan vibration to the users weighing balance. Models Item Code Model Code Description 220-240 VAC, 50 Hz 2160001 PW1-3A1 Powdermax Weighing Balance Enclosure, 3ft/0.9m 2160010 PW1-4A1 Powdermax Weighing Balance Enclosure, 4ft/1.2m 110-120 VAC, 60 Hz 2160003 PW1-3A2 Powdermax Weighing Balance Enclosure, 3ft/0.9m 2160006 PW1-4A2 Powdermax Weighing Balance Enclosure, 4ft/1.2m 220-240 VAC, 60 Hz 2160004 PW1-3A3 Powdermax Weighing Balance Enclosure, 3ft/0.9m 2160007 PW1-4A3 Powdermax Weighing Balance Enclosure, 4ft/1.2m