Full Steel Fume Hood

Full Steel Ventilated Cabinet

Fume hoods are essential safety equipment in laboratories, primarily used for expelling indoor exhaust gases. They are commonly used laboratory equipment in labs where the removal of harmful gases is necessary, as well as for cleaning and waste disposal during experiments.
The primary function of a fume hood: The main function of a fume hood is exhaust, particularly in chemical laboratories where harmful gases, odors, and flammable, explosive, or corrosive substances are produced during experiments. To ensure user safety and prevent the spread of contaminants from experiments, fume hoods are used near the source of pollution. Historically, fume hoods were used sparingly, only in experiments involving harmful and dangerous gases or those that generate large amounts of heat. The fume hood primarily serves as an auxiliary function to the laboratory table.
The purpose of using a fume hood is to exhaust harmful gases produced during experiments, thereby protecting the health of the experimenters. This means that the fume hood must have high safety and operability. Therefore, the fume hood should possess the following functions:
Release Function: The equipment should be capable of diluting harmful gases generated within the fume hood by absorbing external air from outside the cabinet, and then exhausting them outdoors.
Non-Backflow Function: The function should ensure that the airflow generated by the exhaust fan within the fume hood does not reverse and flow back into the room. To achieve this function, it is preferable to connect a fume hood with an exhaust fan using a single pipe. For those that cannot be connected with a single pipe, they should only be connected in the same room of the same floor. The ventilation fan should be installed as close to the end of the pipe (or at the top of the floor) as possible.
Isolation Feature: A non-sliding glass window should be installed in front of the fume hood to separate the interior and exterior of the fume hood.
Supplementary Feature: Must have a channel or alternative device to draw in air from outside the fume hood when releasing harmful gases.
Controlled Wind Speed Function: An intake speed is required to prevent harmful gases from escaping.
Thermal resistance and acid-base corrosion resistance: Some fume hoods require the installation of electric furnaces, and some experiments produce a large amount of corrosive acidic and alkaline gases. The countertop, lining, side panels, and selected water and gas nozzles of the fume hood should all possess corrosion resistance.