Fume hoods are an important piece of equipment in laboratories where chemicals and other materials can cause fumes or exhausts that are harmful to the human body or laboratory environment. The main purpose of a fume hood is to provide an enclosed environment where work can be performed without the risk exposure to those fumes or exhaust. Unlike the exhaust vent you may see in a kitchen over the stove, chemical fume hoods typically require an enclosed environment with a sliding glass enclosure which can be raised or lowered to access the work space (otherwise known as sash).
Depending on the materials being handled and the laboratory environment, some spaces require a variable air volume ventilation system (VAV) which can vary the amount of conditioned air to meet the actual need of the space required. Other spaces may require a constant air volume ventilation system (CAV) which offers a constant quantity of airflow.
Cross offers fume hood testing and fume hood certification with general inspection and verification of fume hood face velocity for various types of fume hoods used for chemical containment. Our fume hood test and calibration procedures satisfy the ANSI/AIHA Z9.5 – 2012 specification for laboratory ventilation and methods of testing performance. An initial inspection includes verification of proper functionality of equipment (sash, electrical outlets, alarm, or airflow monitor) and visual checks for leaks and corrosion, while our face velocity testing offers full reporting of the airflow at recommended sash height.
For more information about fume hood testing with Cross, fill out our contact form to learn more or schedule a test today!