The vertical flow workbench and the horizontal flow workbench have the following differences:

Airflow direction
Vertical flow workbench: The airflow is blown out from the top of the workbench and flows downward in a vertical direction. It separates in the middle of the operation area and is drawn away through the front air intake hole and the rear air intake window.
Horizontal flow workbench: The airflow is blown out from one side of the workbench and passes horizontally through the working area, directly blowing towards the operator.
Structural design
Vertical flow workbench: Usually, a high-efficiency air filter is installed at the top, and the fan is also mostly located at the top. There is usually a lifting glass baffle or an organic glass baffle at the front. When not in use, it can be lowered and sealed, which can effectively prevent external air from penetrating and the operation odor from irritating the human body.
Horizontal flow workbench: The structure is relatively simple. One side is equipped with a fan and a filter. It is usually designed as an open type without a closed baffle. However, some have transparent laminated glass baffles on both sides of the workbench.
Applicable scenarios
Vertical flow workbench: Commonly used in laboratories, biopharmaceuticals, the optoelectronic industry, microelectronics, hard disk manufacturing, cell culture, and other fields. In some experimental operations that may produce harmful gases or aerosols, vertical flow can prevent operators from being injured.
Horizontal flow workbench: Widely used in electronics, national defense, precision instruments, meters, the pharmaceutical industry, tissue culture, etc. It is suitable for long-term operations on the workbench, such as chip inspection and printed circuit board assembly, and is also applicable to scenarios with low requirements for airflow interference.
Protective effect
Vertical flow workbench: The airflow is directed vertically downward, which can rapidly push down the contaminants generated during operation, reducing the diffusion of contaminants in the operation area. It provides better protection for items and samples within the operation area, especially suitable for situations where extremely high sample purity is required and no particulate contamination is allowed.
Horizontal flow workbench: The airflow flows horizontally, forming a uniform airflow layer on the working surface. It can provide better protection for items or samples placed horizontally, but it is relatively weak in preventing contaminants generated by operators from mixing in. Moreover, there may be vortices at the end of the airflow, causing some particles to deposit in the working area.
Cost price
Vertical flow workbench: Due to its relatively complex structure, it requires more materials and more precise craftsmanship. Meanwhile, to achieve vertical airflow, it often needs a more powerful fan and a more complex filtration system. Therefore, its price is generally slightly higher than that of a horizontal flow workbench.
Horizontal flow workbench: It has a simple structure, relatively low cost, and high economic value.
Operating space and convenience
Vertical flow workbench: Due to the airflow being vertically downward, a clean airflow is formed in a certain space above the workbench surface, resulting in a relatively small operating space. Moreover, when placing taller instruments and equipment, it may affect the airflow distribution.
Horizontal flow workbench: The air is blown out horizontally, forming a relatively long clean air flow area on the workbench surface. It is suitable for placing long or large items, and the operation space is relatively large, which is convenient for operators to perform various operations on the workbench surface. It is more suitable for situations where multiple samples or instruments need to be placed on the workbench.