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What are fume hoods, and how they are different from laminar hood

The Fume hood is a ventilated room that removes harmful chemical gases and volatile vapors from the laboratory and provides only personal protection. Biological safety cabinets (or biosafety cabinets) use HEPA filters to provide environmental, personnel, and product protection.

Depending on the application, the filtered air can be recirculated or exhausted, making it suitable for handling dangerous particles such as bacteria and viruses.

Without these toxic substances, staff, regardless of scientists, pharmacists, researchers, or other professions, cannot perform certain tasks or complete tasks. They can be mixed, matched, added, deleted, or researched, and these factors are “necessary evil” for some professions and businesses to thrive. Fortunately, protective safety equipment is provided to prevent workers from being exposed to harmful substances. A Low hood is different from fume hood in various things.


Both are designed to safely handle specially designed scientific risks, but differ in the exact type of protection provided, the airflow, and the appropriate use.

Here are some general points to consider if you need to choose a lab “hood”.


Please note that improper selection or use of equipment can have serious health and safety consequences.


To know the kind of security you need is the first pace in choosing the correct lab inclusion. Biosafety cabinets protect the environment, personnel and products, while range hoods protect personnel only. The safety is also an important factor in Lowhood also.

The flow of air


Air flow in Fumehood


As Fumehood handles hazardous chemicals (see application below), laboratory personnel draw air from the front of the instrument, through the work surface, and through diluted ducts. Release to atmosphere.

Within the range hood, proper and uninterrupted airflow is important. Do not store up large apparatus in the hood or hinder the group of air inside the component. To preserve a safe and competent work surroundings, keep your skull out of the hood and stay the sash as closed as possible.


Fume hoods: Chemical fume hoods are the most common type and operate at a constant airflow., , High-performance exhaust hoods, reduced air volume, Auxiliary air fall under the umbrella of chemical exhaust hoods. High performance hoods with a changeable air quantity system are most competent. The hood also accommodates special situations, such as those that are particularly suitable for handling peracids (built with acid-resistant materials) and radioactive applications (built with additional decontamination properties, often requiring duct filters) .

Other Cabinet Types: Choose the right cabinet for the desired operation. With the right equipment, both the space within the lab and the space itself can be optimally protected and the work done.

Conclusion of fume hood and laminar flow hood

Fume hoods and flow hoods are two laboratory devices that are essential for daily work, but serve different purposes. As one of the most important devices in the work environment, both devices play an important role. They can complete important tasks while keeping staff safe. When used properly, users of these devices can ensure a safe working environment by treating toxic chemicals or pathogenic microorganisms.

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