OM0236
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February/2019
6.2.6 Operating Sequence
Start Up - Turn on CVE blower and lights, check air intake and exhaust portals of the unit to make sure they are
unobstructed. Blower speed must only be readjusted by qualified maintenance technicians.
Allow blowers to operate for a minimum of 5 minutes before manipulations are begun in the CVE. If the filtered
air exhausted from the unit is discharged into the room, as in some installations, an additional advantage is
obtained from purification (filtration) of characteristic contributing to the quality of the laboratory environment,
some owners of CVE leave them in operation beyond the time of actual use.
6.2.7 Wipe down for CVE Operation
The interior surfaces of the work space should next be disinfected by wiping them thoroughly with 70 percent
alcohol or similar non-corrosive antimicrobial agent.
NOTE: DISINFECTANTS THAT USE CHLORIDES AND HALOGENS WILL CAUSE DAMAGE TO THE
STAINLESS STEEL SURFACES IF PRESENT AND LEFT ON FOR LONG PERIODS OF TIME.
IF THE DISINFECTANT USED CONTAINS CHLORIDES OR HALOGENS, RE-WIPE ALL SURFACES
WITH 70% ALCOHOL OR SIMILAR NON-CORROSIVE ANTI-MICROBIAL AGENT TO PREVENT
DAMAGE TO STAINLESS STEEL.
6.2.8 Materials & Equipment
The apparatus and materials should next be placed into the enclosure workzone. Materials should be arranged so
that clean and dirty (used) materials are well separated.
6.2.9 Perform work
The work can now be performed. The technician performing the work is encouraged to wear appropriate personal
protective equipment (PPE), (i.e. a long-sleeved gown with knit cuffs, rubber gloves and appropriate respirator).
This will protect the hands and arms from viable agent and chemical contamination. At a minimum, the hands and
arms should be washed well with germicidal soap before and after work.
6.3.10 Terminal Purging & Wipe down
Following completion of the work, allow the cabinet to run for a 2-3 minute period without personnel activity to
purge the unit. The decontamination of the interior surfaces should be repeated after removal of all materials,
culture, apparatus, etc. A careful check should be made for spilled or splashed which may contaminate the work
environment.
6.2.11 Shut Down
Turn off blowers and lights. Do not use CVE as a depository for excess laboratory equipment during period of non-
operation.
Summary of Contents for LabGard NU-813-300
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