Chapter 5: Using Your Filtered Enclosure and Appropriate Application

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 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

Odor Control Carbon Filters

Selected carcinogens may be used safely with Odor Control carbon filters under the following restrictions.

!

The use of a vented fume hood or ventilated enclosure with ducting to the outside is always the preferred method when working with carcinogens. The Odor Control carbon filters should only be used, as a last resort when venting to the outside is not an option.

The potential carcinogens are listed in the NIOSH Pocket Guide to Chemical Hazards as “Ca.” Each potential carcinogen must have a TWA of 1 or greater; have minimum respirator recommendation of Escape GMFOV, and an odor threshold significantly lower than the TWA for the chemical.

The inlet concentration or the evaporation rate of the chemical must never exceed the TWA for the chemical.

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Gentek 3980203, 3980423, 3980422, 3980200, 3980401, 3980403, 3980323 Chemical Carcinogen Use with Odor Control Carbon Filters

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