Chemistry lab fume hood is one of the important clean room equipment. It is generally used in a laboratory in order to conduct all kinds of experiments.
The major use of this product is to protect the person who is conducting the experiment and their belongings. It also protects the user from small explosions and splashes that occur during the experiments. It also contains an enclosure at the top of it, which holds the effects that are emitted while experimenting with the chemicals. Let’s explore it in more detail.
How Does Chemistry Lab Fume Hood Work?
There are some working principles of the fume hood, on which it works. To understand it better, we have presented the working principles below. Have a look at them.
- It is widely used in laboratories to protect the user from inhaling toxic fumes.
- It protects the person from spills, splashes, and explosions
- It provides protection to the experiment under the shelter and protects it from contamination
Various Types of Fume Hoods
When we talk about the fume hood then it comes in three varieties as it is an important part of the lab and used in bulk to maintain the relevancy of the experiment and protect the user.
Ductless Fume Hood
It is one of the fume hood for a chemical laboratory that is mainly used by the users. In this, you won’t find any vents but will notice a large filter unit, which will be mounted on top, right in front of the fan. There will be blower inside of it that sucks in air of all the room from the front opening, collect all the gasses or fumes in the box and then passes it through the filter and at last release the filtered air in the room.
Ducted Fume Hood
A ducted fume hood can also called chemical fume hood, protects the user from the harmful effects of the experiments by capturing all the dangerous fume particles and vapors that are generated while experimenting with the chemicals. The air that is emitted during the experiment goes inside the hood through an open front, which is known as the sash.
It works by creating a negative pressure that prevents the contaminants from going inside the room. After this, the hazardous air passes from the internal ductwork and is expelled outside through the exhaust fan, which can be easily found at the top of the building’s roof. In this way, the users can protect themselves from harmful substances.
Down flowing Fume Hood
Down flowing fume hood also stands for downdraft fume hood. It pulls the air downward by means of the work surface in order to capture the hazardous fume, dust, and vapors that can harm the user. After this, it gives clean and safe air from the top or back of the unit, which helps in maintaining the continuity of the airflow.
This way, a user becomes safe from inhaling the harmful air. The down flowing fume draws the contaminated air through the filter, which is HEPA or activated carbon, or is recirculated (by ductless mode) or is vented externally (by the ductless models).
Where Chemical Fume Hoods Are Used The Most?
Apart from the laboratory, there is a wide use of fume hoods worldwide. Due to raw materials, procedures, and approaches to creating and completing production, they are used in various places. Some of them are mentioned below:-
- Metalworking and welding
- Pharmaceutical industry
- Conserving and restoring art
- Chemical manufacturing
- Automotive industry
- Electronics and semiconductor industry
Final Thoughts!
Here we are at the end of the discussion on Chemistry Lab Fume Hoods, their uses, types, and many other factors. If you also work in a laboratory or any other industry related to chemical work, then do use it for your safety and security. If you are surrounded by such people who indulge in such places, then be aware of them about it and let them work safely and securely.
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