Labconco Class I Enclosure Models 3980423 - Manual (Page 18)

Chapter 3: Getting Started
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14
Installation of HEPA Filters and
Accessory Odor Control Carbon Filters
HEPA Filters
HEPA filters are shipped installed with the gasket on the downstream side. The
HEPA filters are leak checked at Labconco. A second leak check should be
performed before using the enclosure and at least annually thereafter. Consult
your Safety Officer and Chapter 6 for the HEPA Filter Leak Test. See Figure 4-2
for HEPA filter location, HEPA filter gasket, and filter clamp bolts. The Purifier
enclosures require decontamination of biohazardous materials or are used with
non-biohazardous materials or nuisance powders. All seams upstream of the
HEPA filter are jacketed by negative pressure. This intrinsically safe design
ensures containment.
Carbon Filters (Accessory for Odor Control only)
For carbon filter installation, first remove the upper perforated cover, secured by
Phillips head screws, on the top of the enclosure. See Figures 4-1 and 4-2 for
location of the upper perforated cover. See Chapter 7 for a list of available carbon
filters. All carbon filters are simply gravity installed with the gasket side down
and down stream on the exhaust side of the HEPA filter. Install the correct carbon
filter for the application.
HEPA
ACCESSORY
CARBON