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CHAPTER IV
OPERATING YOUR CABINET
4.1 LAMINAR FLOW CONTROL SYSTEM (for units equipped with optional Controller see Section
Monitair Controller Addendum)
Fan/Light Button
To turn on and turn off the fan and lights
UV Timer Dial
Allows UV to be activated.
Eyes and skin should not be exposed to direct ultraviolet light. Front door/sash must be
completely closed before activating.
4.2 CABINET START-UP PROCEDURE
1. Adjust the seating position so that the user's face is above the front opening. Adjustable stool is
recommended.
2. Turn on the fan. Please leave the cabinet on for 5 minutes before start working in order to
purge airborne contamination from the work area.
3. Prepare a written checklist of materials/apparatus necessary for immediate usage and surface
decontaminate them before loading them into the work zone. This is to prevent overloading
and minimize the number of arm movement that might disrupt the airflow.
Keep the back air grilles unobstructed by arms or objects
Always surface-decontaminate everything before inserting them into the work zone
4. Load and arrange the materials/apparatus to minimize the movement of contaminated items
over clean items by segregating the contaminated items from the clean items.
5. A clean long-sleeves laboratory coat may be used to protect personal clothing.
6. Wash hands thoroughly using germicidal soap. Wear gloves for hand protection. Gloves
should be pulled over the knitted wrists of the gown rather than worn inside.
7. Minimize room activity (personnel movements, closing and opening of doors, etc.).
4.3 WORKING IN THE CABINET
1. Work from clean to dirty by following the segregation of clean and dirty materials/apparatus
as described in the start-up procedure on top
2. Particularly critical objects may be arranged such that air flows directly against them and keep
the back air grilles unobstructed by arms or objects.
3. Do not use a gas flame whenever possible as it interferes with airflow
Do not use writing materials inside the work area as they generate aerosols
measured air velocity. Adjustment should be made only by a qualified technician. Do not operate
the cabinet if fan fails to run