If you choose incorrectly, you feel it immediately: a flow cabinet that does not align with your process costs you the protection you need. For those who work daily with sensitive samples, powders, or bulky equipment, this is a recognizable bottleneck. And that is precisely why it weighs the direction of the airflow weighed so heavily in the choice of a laminar flow cabinet.
Within laminar flow cabinets, there are two main directions: vertical and horizontal. In a vertical flow cabinet Air is drawn down via an H14 HEPA filter at the top, over the work surface, after which a portion is blown out and the rest is recirculated. horizontal air conditioning unit It works exactly the other way around: the air enters via an H14 HEPA filter at the rear wall and flows parallel across the work surface, towards the user.
Vertical flow is the safe choice for extensive equipmentLarge instruments such as pipetting setups are less likely to disrupt the airflow. If you work with powders or fine substances, these are checked. led down instead of directly towards you. Moreover, because the filters are at the top, less space lost at the back of the cabinet.
Horizontal flow, on the other hand, plays to its strengths at delicate or quick work. The turbulence on the work surface remains minimal, ideal for steps such as microelectronics assembly or sensitive pipetting. Your hands are behind the airflow, which reduces the risk of contamination of your samples. And because there no filter housing If the surface above obstructs the work surface, you work with an unobstructed view and comfortable, ergonomic access.
Which configuration Which one is right therefore depends entirely on your application. Want to know more? Read the full blog about horizontal vs. vertical flow.
