Labconco Class I Enclosure Models 3980423 - Manual (Page 32)

Chapter 5: Appropriate Applications for Your Filtered Enclosure
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Start-up

Turn on exhaust system and accessory light. Turn off the UV light, if
equipped.

Only raise the sash for loading and cleaning.

Check the baffle air slots for obstructions.

Allow the enclosure to operate unobstructed for 1 minute.

Wear a long sleeved lab coat and rubber gloves. Use protective eyewear.
Wear a protective mask if appropriate. Consult your Safety Officer for
additional personal protective equipment recommendations.
Loading Materials and Equipment

Load only the materials required for the procedure. Do not overload the
enclosure.

Do not obstruct the air foil, or rear baffle slots.

Large objects should not be placed close together and should be elevated
above the work surface to permit airflow to sweep under the equipment.

After loading, wait one minute to purge airborne contaminants from the
work area.
Work Techniques

Keep all materials inside the lower air foil, and perform all contaminated
operations as far to the rear of the work area as possible.

Segregate all clean and contaminated materials in the work area.

Avoid using techniques or procedures that disrupt the airflow patterns of
the enclosure.
Final Purging

Upon completion of work, the enclosure should be allowed to operate for
two to three minutes undisturbed, to purge airborne contaminants from the
work area before shutting down the blower.

If equipped, install the UV closure panel and turn on the UV light to
decontaminate the work area as determined by your Safety Officer.
Unloading Materials and Equipment

Objects in contact with contaminated material should be surface
decontaminated before removal from the enclosure.

All open trays, weigh vessels or containers should be covered before being
removed from the enclosure.
Shutdown

Turn off the exhaust system and light.

Turn off the UV light, if applicable.