NuAire LabGard ES NU-565-400, Operation & Maintenance Manual

Page: 39 / 105

OM0301
August 20 Page 39 of 105
6.3.6 Terminal Purging & Wipe down
Following completion of work, allow the cabinet to run for a 2-3 minute period without personnel activity to purge
the cabinet. The decontamination of the interior surfaces should be repeated after removal of all materials,
cultures, apparatuses, etc. A careful check of grills and diffuser grids should be made for spilled or splashed
nutrients, which may support fungus growth, and resulting spore liberation that contaminates the protected work
environment.
6.3.7 Paper Catch/Prefilter
A permanent paper catch is installed behind the rear divider panel of the work zone. This area forms the return air
path to the motor/blower; and if the airflow is blocked, it could seriously affect the performance of the cabinet.
Therefore, THE PAPER CATCH SHOULD BE CHECKED AND CLEANED NO LESS THAN A WEEKLY BASIS; DAILY basis if
procedures dictate the use of paper products. Any paper removed must be properly disposed of as Contaminated
Hazardous Waste. The above procedures also apply to all cabinets configured with a prefilter.
6.3.8 Shut Down
Turn off blowers and lights. Do not use cabinet as a depository for excess lab equipment during periods of non-
operation. If Antineoplastic agents are being prepared in the cabinet, it is recommended to let the cabinet run
24 hours per day. This lessens the possibility that contaminants may escape.
6.4 Ergonomics
Ergonomics, the study or accommodation of work practices is extremely important for proper cabinet usage and user
health and safety. An evaluation of normal work practices should be performed with each user when working in a cabinet.
Evaluation criteria should be at a minimum:
a. Proper user posture
b. Effective workzone layout for work practice
c. Vision or sightlines
For each of the above evaluation criterion, several aids may be supplied to accommodate the user.
• Ergonomic chair - A six-way articulating seat and back control for personalized adjustment to assure proper user
posture. Be sure feet are resting on the floor, chair foot support or foot rest. Also be sure back is fully supported
with proper chair adjustments
• Forearm/armrest support - The cabinet is provided with a forearm support on the work access opening
• Periodic mini-breaks during work practice should be taken resting forearm to avoid stress and fatigue
• Effective workzone layout - Always prepare your work procedure to minimize reach to avoid neck and shoulder
stress and fatigue. Rotating tables are optional to maximum workzone and minimize reach
•
Vision and sightline - Always prepare your work procedure to eliminate glare and bright reflections on the window.
Keep your window clean and sightlines clear to your effect workzone
6.5 Cleaning Procedures
6.5.1 General
Cleaning laboratory equipment is important in terms of both functionality and general good housekeeping. The
information provided below is intended to aid the development of facility Standard Operating Procedures (SOP’s)
for cleaning the equipment. It is strongly recommended that all cleaning materials used be tested and verified in
terms of both effectiveness and material compatibility before they are written into the cleaning SOP
documentation.
a. The airflow blower should be operating during the cleaning process to maintain sterility and/or containment
during the cleaning process.
b. Raise window to gain additional access if desired.
c. Apply appropriate cleaning material or surface disinfectant to surfaces. Most surface disinfectants require a
specific contact time depending the materials used within the work zone. CONSULT APPROPRIATE DISINFECTANT
DOCUMENTATION FOR PROPER APPLICATION AND SAFETY PRECAUTIONS .
c-1. Stainless steel (type 304) has noted material compatibility concerns with Acids, Chlorides and Halogens. IF
THESE MATERIALS ARE USED AND ALLOWED TO BE LEFT ON THE STAINLESS STEEL SURFACE, OXIDATION AND
DEGRADATION WILL OCCUR . Only by re-wiping surfaces with either sterile water or 70% IPA will remove harmful
materials from the stainless steel surface.