Labconco Purifie Horizontal Clean Benches 3970424 - Manual (Page 24)

Chapter 4: Performance Features and Safety Precautions
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15. UV (Ultraviolet) Lamp (Not Shown), found only on some Clean Bench
models, allows the operator to surface disinfect the work area of the
enclosure when it is not in use. The UV light rays will not penetrate the
plane of the sash and lower air foil.
16. UV Closure Panel provides protection when the UV lamp is on. The panel
must be in place for the UV lamp to work. See Figure 4-3.
17. Accessory Work Surface is dished and contoured to fit the dimensions of
the Clean Bench to contain spills.
18. Upper Diffuser Screen provides protection for the HEPA Filter and
promotes even distribution of downflow air. See Figure 4-2.
19. Prefilter (roughing) enhances the life of the HEPA filter by trapping large
particles. It should be replaced quarterly.
Safety Precautions
1. Although the Clean Bench has been engineered to maintain Class 5 air
conditions, caution should always be used while working. Prior to using
the Clean Bench, check to make sure that the blower is operating and
periodically ensure that air is flowing through the enclosure at its specified
downflow velocity of 30 to 65 fpm. The use of an airflow monitor is
recommended to alert the user to a problem with airflow.
2. Use good housekeeping in the Clean Bench at all times. Clean up spills
immediately. Periodically clean the Clean Bench interior.
3. Do not overload the work surface with apparatus or work material.
4. The Purifier Vertical Clean Bench should never be used with biohazardous
materials, toxins, acids, or radionuclides. Air from the work area is
dispersed directly into the laboratory from the Clean Bench. A qualified
Safety Officer must carefully assess any risk associated with the use of the
Purifier Vertical Clean Bench.
5. Always work with your hands as far back into the Clean Bench as possible.
Keep all materials and apparatus inside the lower air foil of the enclosure.
6. Do not work in this Clean Bench without the blower running.
7. Perchloric acid use in this Clean Bench is prohibited.
8. Radioactive materials are prohibited in this Clean Bench. Consult your
Safety Officer.
9. Avoid cross drafts and limit traffic in front of the Clean Bench. Air
disturbances created may disturb Class 5 conditions.
10. A qualified certification technician should test the Clean Bench before it is
initially used. The Clean Bench should be validated annually and
whenever it is relocated.
11. The sash must remain in the down position while using the Clean Bench.