PP Fume Hood

PP Fume Hood

Fume hoods are essential safety equipment in laboratories, primarily used for expelling indoor exhaust gases. They are commonly used laboratory equipment in situations where harmful gases need to be vented and for cleaning and waste disposal during experiments.
The primary function of a fume hood: The main function of a fume hood is exhaust, especially in a chemical laboratory where harmful gases, odors, flammable, explosive, and corrosive substances can be produced during experiments. To ensure safety for users and prevent the spread of contaminants from experiments, a fume hood is used near the source of pollution. Previously, fume hoods were used less frequently, mainly for experiments involving hazardous gases, dangerous conditions, and those that generate large amounts of heat. The fume hood served primarily as an auxiliary function to the experiment table.
The purpose of using a fume hood is to exhaust harmful gases produced during experiments, protecting the health of the experimenters. This means it must have high safety and operability, requiring the fume hood to 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 releasing them outdoors.
Non-backflow function: The function should ensure that the air flow 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 one fume hood to one exhaust fan with a single pipe. For those that cannot be connected with a single pipe, they should only be connected in the same room on 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 viewport should be installed in front of the fume hood to separate the interior and exterior of the hood.
Supplementary Feature: Should be equipped with a channel or alternative device to draw in air from outside the fume hood when releasing harmful gases.
Control of wind speed function: An intake speed is required to prevent the release of harmful gases.
Thermal and corrosion-resistant properties: Some fume hoods require the installation of electric furnaces, and some experiments produce a large amount of corrosive acidic and alkaline gases. The countertop, back panel, side panels, and selected water nozzles, gas nozzles, etc., of the fume hood should all have corrosion-resistant functions.