The BD PhaSeal™ Closed System Transfer Device is the first and only CSTD cleared under the FDA's newly created product code; ONB: Closed Antineoplastic and Hazardous Drug Reconstitution and Transfer System. BD PhaSeal™ provides a safe system for healthcare workers by preventing environmental and microbiological contamination throughout the entire process: drug preparation, administration and waste disposal. With its closed system feature, it also maintains the sterility and the integrity of the product.