Labconco FilterMatPortable Exhausters 3970024 - Manual (Page 6)

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Chapter 1: Introduction
they are mixed with and diluted by room air. This contaminated
air is then drawn into the FilterMate where HEPA filters remove
particulates. Vapors are adsorbed in activated or impregnated
carbon filters. For applications requiring carbon filtration, it is
recommended that the FilterMate be allowed to operate at lower
speeds of 60 to 80 feet per minute to allow adsorption of volatiles
and prevent material breakthrough back into the air. Additionally,
the FilterMate’s built-in speed control is capable of reducing the
face velocity to 60-80 fpm, so that analytical and microbalances
may be used. Purified air is drawn from the filters, through the fan
and returned to the room or exhausted outside through a thimble
connection. For most applications, the FilterMate does not exhaust
filtered air from the room unless required by your Safety Officer.
The HEPA filter must be installed before the carbon filters for
applications with light duty chemical use. For only volatile
chemical use, the Carbon FilterMate is used. For hazardous
biological applications, Labconco recommends the purchase of a
Class I or Class II biological safety cabinet. Contact Labconco for
biological safety cabinet ordering information. See chart below:
Application Product Filters
Powders & Particulates
FilterMate HEPA
Volatile Chemicals
(Low level) FilterMate Carbon*
Powders & Particulates
& Volatile Chemicals FilterMate HEPA and Carbon*
Non-Hazardous Bio FilterMate HEPA
Hazardous Bio Class I & Class
II HEPA
*It is strongly recommended that a Labconco product specialist
review the chemical application to determine if it is suitable.