Filter
Top Products
40
Chapter 5: Using Your Filtered Enclosure and Appropriate Application
immediate irreversible health effects. IDLH concentrations should
not be approached in the enclosure.
Appropriate Chemicals for Odor
Control Carbon Filters
Below is a general set of rules to determine appropriateness of
chemical usage.
Selected organic chemicals considered to be
occupational carcinogens by NIOSH can be used
in the filtered enclosure with carbon filters
under rigid restrictions. See separate discussion
on carcinogens for special instructions.
Organics must have time weighted exposure limits (TWA) of 1
PPM or greater.
Chemicals must have a detectable odor at concentrations below the
TWA for the chemical.
Chemicals must be designated by NIOSH guidelines as acceptable
for use with chemical cartridge-type respirators (the exception is
formaldehyde and ammonia/amines, which used impregnated
carbon). Chemicals not listed by NIOSH in the Pocket Guide must
be approved by Labconco Product Specialist (or Engineering).
Inlet concentration must never exceed the IDLH (Immediately
Dangerous to Life and Health) concentrations.
Chemicals having a recommendation by NIOSH of at least
“Escape GMFOV” (Gas Mask Full-Face Respirator).
When evaporating a mixture of chemicals, the chemical having the
lowest TWA will be used to determine if the mixture meets the
guidelines.
Call a Labconco Product Specialist at 1-800-821-5525 for
assistance in chemical appropriateness.
Hazardous Misapplications for
Odor Control 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
!