Labconco Purifie Horizontal Clean Benches 38185 Series, 8' - Manual (Page 26)

Chapter 5: Using Your Clean Bench
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Original Instructions
Reading the Pressure Gauge
The pressure gauge on the front of the unit displays the total system operating
pressure (the negative pressure below the prefilters, plus the positive pressure on
the HEPA filter). The pressure gauge reading should be periodically recorded
during use. An increase in pressure from the original pressure reading indicates
either prefilter or HEPA filter loading.
Use of the Clean Bench
Planning
• Thoroughly understand procedures and equipment before beginning work.
• Arrange for minimal disruptions, such as room traffic or entry into the
room, while the clean bench is in use.
Start-Up
• Turn on fluorescent light and clean bench blower.
• Check the prefilter for obstructions and note the gauge reading.
• Wipe down the interior surfaces of the clean bench with stainless steel
cleaner or 70% ethanol. DO NOT use abrasive cleaners, bleach or
solvents, as they may damage the work surface of the clean bench.
• Allow the clean bench to operate undisturbed for 5 to 15 minutes before
loading materials.
• Wear long sleeved lab coat with knit cuffs and over-the-cuff rubber
gloves. Use protective eyewear.
Loading Materials and Equipment
• Only load the materials required for the procedure. Do not overload the
clean bench.
• Do not obstruct the air diffuser.
• Large objects should not be placed close together.
• After loading the clean bench, wait 2 to 3 minutes to purge airborne
contaminants from the work area.
Work Techniques
• Keep all materials at least 4 inches inside of the clean bench and perform
all contaminated operations as far to the front of the work area as possible.
• Perform sterile operations as far to the rear of the work area as possible.
• Segregate all clean and contaminated materials in the work area.
• Arrange materials to minimize the movement of contaminated materials
into clean areas.
• Keep all discarded contaminated material to the front of the clean bench.
• Avoid moving materials or the operator’s hands and arms in and out of the
work area during use.