The NU-427 preserves the Class II Type B1 cabinet’s traditional role of serving as an intermediate option between recirculating and total exhaust cabinets but with a control system fit for modern applications. If permissible by your chemical risk assessment, this unit may also be used for work with minute quantities of volatile chemicals and trace amounts of radionuclides in the directly exhausted portion of the work zone.
A touch screen displays the readings from both this flow grid and a downflow sensor in the work zone at all times for the cabinet operator. Standard models meet the requirements of the respected NSF/ANSI 49 standard for biosafety cabinets.