Labconco Fume Adsorbers 3955422 - Manual (Page 21)

Chapter 5: Appropriate Applications for Your Enclosure
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IDLH (Immediately Dangerous to Life and Health). An atmosphere that poses
an immediate hazard to life or produces immediate irreversible health effects.
IDLH concentrations should not be approached in the enclosure.
Hazardous Misapplications for Carbon
Filters with Volatile Chemicals
There is one scenario where the accessory carbon filter misapplication would be a
part of a hazardous condition. If the user continues to operate the enclosure with
any of the following conditions present a potentially hazardous condition will exist:
1. The inlet concentration of vapors is greater than the TWA.
2. The carbon filter becomes saturated.
3. The ventilation of the room is insufficient to dilute the exhaust of the
enclosure to below the TWA for the chemical.
When the inlet concentration is greater than the TWA, extra measures must be
taken to monitor the filter and number of room air exchanges.
Chemical Carcinogen Use with Carbon
Filters
Selected carcinogens can only be used with carbon filters in the Fume Adsorber
under strict guidance from your Safety Officer.
The use of a vented fume hood or ventilated enclosure with
ducting to the outside is always the preferred method when
working with carcinogens.
Prohibited Acid Use
The Fume Adsorber with integral blower motorized impeller cannot be exposed to
acids. Where applications require the use of acids, a vented fume hood or vented
enclosure should be used with a remote blower and ducted to the outside. Consult
Labconco for other small enclosures used with a remote blower suitable for acid
work. No exceptions are permitted, as the impeller life span will be limited with
acid use. Consult Labconco for other enclosures suitable for acid work.
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Carbon