Vertical Laminar Down Flow Unit
Vertical laminar air flow workstations provide an
biologically clean and particle free environment for
various application including liquid / powder filling,
washing operations, transfer of material from one
place to another and storage of material under Class
The directly driven blower sucks in the ambient air
through pre-filters and supplies it within the working
area, filtered by means of HEPA filters. The average
velocity of the first air output is approximately
100 FPM +/- 20%. This filtered air creates an positive
pressure within the working area is to prevent penetration
of the contaminated ambient air into the working area.
These units are factory assembled and are made up
of S. S. 304 grade Stainless Steel material. These
units have smooth welded corners.
A direct driven statically and dynamically balanced
blower assembly with a volume control damper is used
for air circulation within the cabinet. Easy access
is provided to the blower compartment.
DISCHARGE FILTERS :
Discharge filters are generally HEPA filters certified
to achieve an filtration efficiency of not less than
99.97% and filtration accuracy of 0.3 microns. Hence
the discharge air complies with Class 100 U.S. Fed.
Std. 209 - E.
Pre-filters made from the fibre glass media to achieve
high filtration efficiency and filtration accuracy
of upto 5.0 microns. These are used to block major
particles from the ambient air being sucked by the
blowers and passing it through the discharge filters.
Thus enhancing the life of discharge filters.
Low voltage touch control panel in the front of the
cabinet is used for the unit operation. The unit comes
with the switchgear for safe & trouble free operation.
The fluorescent light fitted with glare free diffuser
panels ensures proper visibility with the working
A Magnehelic gauge is used for static pressure measurement
across the HEPA filters and also to monitor the blower
» Hour meter to record operation time.
» Static pressure transmitter. ( 4 - 20 mA )
» Variable blower speed control device.
» Ceiling or Stand mounting arrangement.
» Germicidal U.V. light.
» Power outlet.
» Temperature controlled Heated work surface.
» Onsite validation.
Writing and execution of DQ, IQ and OQ carried out
by our factory trained engineers.