389D000 Rev B
3
Standard Features
Cabinet Primary Function
The SterilGARD
®
e
3
is designed as a Class II, Type A2, Biological Safety Cabinet (BSC) as classified by
NSF/ANSI Standard 49. This Class of BSC may exhaust to the room or through a canopy exhaust connection
located at the top of the cabinet into an external facility exhaust system.
Applicable Standards
Except as noted elsewhere in this document or in the factory test report, this cabinet meets the requirements of
and is tested to UL61010-1, 2
nd
Edition, CAN/CSA-C22.2 No. 61010-1, 2
nd
Edition, NSF/ANSI Standard 49-
2012 and IEC/EN61326-1(2006), IEC/EN61000-3-2(2000), IEC/EN61000-3-3(2001) providing NSF listing and
CE Mark (APPROVAL PENDING)
Cabinet Pressure Plenums
The cabinet work area is surrounded by negative pressure plenums, all external seals are under negative
pressure, and all internal positive pressure plenum seals are surrounded by negative pressure plenums. All
pressure plenums are ruggedly constructed in order to provide strength, durability, air tight seals and resistance
to deterioration.
Motor/Blower Capacity, Cabinet Supply Blower
The SterilGARD
®
e
3
cabinet is designed to automatically compensate for an increase in pressure drop across the
filters without reducing total air flow rate by more than 10%. The air flow capacity of the cabinet is measured
by the ability to provide a nearly constant volume of air as the filter resistance to airflow increases.
Manual Air Balance
The SterilGARD
®
e
3
cabinet has a manual internal balancing damper that compensates for down flow and
exhaust/intake imbalances.
WARNING
This damper must only be adjusted by a qualified technician who has had proper training and has the
proper equipment for checking the air balance inside the cabinet.
Cabinet Filters
Both supply and exhaust filter inside the cabinet are scan-tested HEPA filters. They are 99.99% effective on
removal of most penetrating particles (mpp) of 0.3 micron size. Each filter is leak checked after installation in
the cabinet and prior to shipment.
Optional factory installed Supply and exhaust ULPA Filters are available. The proven efficiency of ULPA
filters is 99.999% for removal of most penetrating particles (mpp) 0.1 to 0.2 microns in size.
Easy Filter Access
All filters are front accessible for ease of service. The supply and exhaust filters can be removed from the front
of the cabinet through an access panel located behind the fascia panel in the front of the cabinet.
WARNING
Only qualified technicians should replace filters.
Work Area Design
The interior side and rear work area walls are constructed from a single piece of stainless steel. Inside corners
are constructed with a smooth radius to help prevent buildup of contaminants and facilitate cleaning.
Front Access High Velocity Air Slots
High velocity air slots are placed around the perimeter of the cabinet access opening. Slots are located at the
front of each sidewall at the access opening, and horizontally along the top of the access opening behind the
view screen. The purpose of the slots is to improve the cabinet integrity by capturing any particulates at these
critical transitions.
