Esco Labculture® Plus Class II Type A2 Biosafety Cabinet - Comlibris

ULPA-filtered air
Unfiltered / potentially contaminated air
Room air / Inflow air
Cabinet Filtration System (Duo, Stainless Steel Side Walls)
Side capture zones
Dynamic air barrier, inflow and forward-directed downflow air converge
Ambient air is pulled through the
perforations located towards the work
zone front to prevent contamination of
the work surface and work product. The
inflow does not mix with the clean air
within the cabinet work zone. Inflow air
travels through a return path toward the
common air plenum (blower plenum) at
the top of the cabinet.
Dual blowers and dual exhaust filters
provide an added measure of protection.
If the primary blower fails, the secondary
blower still pushes the air across the
exhaust filters to maintain inflow and
containment.
Approximately 35% of the air in the
common plenum is exhausted through
the ULPA filter to the room. The
remaining 65% of the air is passed
through the downflow ULPA filter and
into the work area as a vertical laminar
flow air stream bathing the work surface
in clean air.
Airstream Duo Model AC2 (D-Series) Biological Safety Cabinet Technical Specifications,
Stainless Steel Side Walls, Dual Blowers
1475 mm (58")
1. Exhaust ULPA filter
2. Blower
1400 mm (55.1")
3. Downflow ULPA filter
670 mm (26.4")
4. Standard UV light Retrofit Kit
Provision
965 / 1270 / 1575 / 1880 mm
(40.7" / 52.7" / 64.7" / 76.7")
1035 / 1340 / 1645 / 1950 mm
(40.7" / 52.7" / 64.7" / 76.7")
5. IV bar Retrofit Kit provision
6. Plugged service fixture provisions
(2 on each side)
7. Stainless steel work zone
8. Electrical outlet Retrofit Kit provision
(2 & 3 ft model - only 1 single outlet
in work zone left side wall)
9. Electrical panel
Biological Safety Cabinet • Class II Microbiological Safety Cabinets (E-Series, S-Series and D-Series)
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The uniform, non-turbulent air stream
protects against cross contamination
within and throughout the work area.
Near the work surface, the downflow
air stream splits with a portion moving
toward the front air grille, and the
remainder moving to the rear air grille.
A small portion of the ULPA filtered
downflow enters the intake perforations
at the side capture zones at a higher
velocity (small blue arrows).
A combination of inflow and downflow
air streams forms an air barrier that
prevents contaminated room air from
entering the work zone, and prevents
work surface emissions from escaping
the work zone.
Air returns to the common air plenum
where the 35% exhaust and 65%
recirculation process is continued.
560 mm (22")
732 mm (28.8")
10. Fluorescent lamp
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11. Esco Sentinel microprocessor
control system
12. Tempered glass sash window