© Reed Mechanical, Inc. 2012 Reed Mechanical Equipment, Inc.  Ventilation          Air Distribution          Heating          Filtration Critical Room Control Main Page Critical Room Control’s Fume Hood Monitor and Controller accurately monitors and/or controls ventilation of a fume where proper face velocity or air volume is vital. The fume hood systems can meet the stringent environment of wet chemistry, open bench, bio-containment laboratories, pharmacies, clean rooms, and animal research facilities. These fume hood monitoring and controlling systems support variable volume, constant volume, and low volume hood configurations. The Critical Room Control Fume Hood Controller is configurable for direct velocity control, vertical sash sensing, horizontal sash sensing, and combination sash sensing. Have a question? Click to email us or call us at 1(800) 338-5109