MRC Ltd
14 http://www.mrclab.com/
2. User Instructions
2.1. Functions
2.1.1. Product concept
This product belongs to FH (A) series Fume Hood. Fume Hood is a kind of negative
pressure ventilation system for protecting operator and laboratory environment. Room
air flows inward from the front opening of the Fume Hood and is consistently ventilated
by the extract blower. Therefore, contaminated fumes, vapors, toxic gasses, aerosol and
corrosive substance which are probably generated during experiments could be
prevented from spreading to the operator or into the laboratory room. In addition, the
polluted air could be purified by the active carbon filter (optional) before exhausting
through the duct. Thus, the outdoor environment could also be protected.
NOTE: Experiments with the use of flammable, explosive substances and
strong acids or bases should NOT be conducted by this FH (A) series Fume Hood.
2.1.2. Operating principle/air flow pattern
Picture 12
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