Labconco 3970202 User Manual - page 27
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Chapter 4: Performance Features and Safety Precautions
14. HEPA filters are only effective for entrapment of
particulate matter.
15. The surface of the HEPA filter is fragile and should not be
touched. Care must be taken to avoid puncturing the
HEPA filter during maintenance. If you suspect that a
HEPA filter has been damaged DO NOT use the enclosure;
contact a local certification agency or Labconco.
16. The HEPA filter will gradually accumulate airborne
particulate matter from the room. The rate of accumulation
will depend upon the cleanliness of the room air, and the
amount of time the enclosure is operating. With normal
usage, the HEPA filters will last two to five years before
requiring replacement.
17. Avoid direct exposure to ultraviolet (UV) radiation;
NEVER work in the enclosure when the UV light is on.
18. Ensure that the enclosure is connected to an electrical
service in accordance with local and national electrical
codes. Failure to do so may create a fire or electrical
hazard. Do not remove or service any electrical
components without first disconnecting the filtered
enclosure from electrical service.
19. Increase the downflow velocity by adjusting the speed
control of the motorized impeller or change the HEPA filter
when the downflow velocity falls below acceptable limits
established by your Safety Officer.
20. Ensure only trained operators use the enclosure. New users
should review the User’s Manual and become familiar with
the operation of the enclosure.
21. Proper operation of the enclosure depends largely upon the
enclosure location and the operator’s work habits. The
enclosure should be located away from traffic patterns,
doors, fans, ventilation registers, fume hoods, and any other
air-handling device that could disrupt its airflow patterns.
Consult Chapter 2: Prerequisites and Chapter 3: Getting
Started sections of this manual for further details.