Labconco Total Exhaust Biological Safety Cabinets 30368 Series - Manual (Page 23)

Chapter 4: Performance Features and Safety Precautions
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Original instructions
Note: The HEPA filter media is very fragile. DO NOT touch the media. If
you think the media of a HEPA filter is damaged, DO NOT USE THE
CABINET. Have the HEPA filter integrity tested by a certifier before using
the cabinet.
Note: HEPA Filters are only effective against particulate material. Gases will
pass through the filter.
Filter frame
Polyurethane seal
Between media pack
and filter frame
Filter media pack –
A continuous sheet
of filter media
ULPA Filters
Optional ULPA filters may be used to replace the standard HEPA filters in
the Purifier Logic+ biosafety cabinets. ULPA filters have the same properties
as described above except they are rated at least 99.999% efficient in
removing particles 0.1-0.2 or 0.2-0.3 micron.
Figure 4-1