What are the differences between laminar flow hoods and FFU laminar flow air supply units?

First of all, laminar flow hoods are fixed air purification devices, usually used in laboratories, pharmaceutical factories, and other fields. It uses a vertical flow airflow method to inhale outdoor air from the top, and after filtering and purifying it through a high-efficiency filter, it is vertically supplied to the working area. This vertical flow airflow method can effectively control the diffusion of particles and harmful substances and ensure the air quality in the working area. The structure of the laminar flow hood usually includes an inlet, a filter a filter chamber, and a supply port. The laminar flow hood can continuously provide high-quality clean air through a circulating purification method.

Then, the FFU laminar flow air supply unit is a movable air purification device, which is widely used in various industries such as medicine, electronics, and food factories. Usually, the FFU laminar flow air supply unit is used on the wall or ceiling of the clean room. It uses a horizontal flow airflow method. The FFU laminar air supply unit contains one or more fans and filters. Its working principle is to inhale outdoor air into the FFU laminar air supply unit, and after purification by the filter, the airflow generated by the fan is horizontally supplied to the working area. The characteristic of the FFU laminar air supply unit is that it can be arranged and adjusted as needed to make it more adaptable to the requirements of various clean environments.

The biggest difference between the laminar flow hood and the FFU laminar air supply unit is the direction of the airflow. The laminar flow hood adopts a vertical flow method, that is, the airflow is supplied from the top to the bottom, while the FFU laminar air supply unit adopts a laminar flow method, that is, the airflow is supplied from one side to the other side or in multiple directions. Therefore, there are differences in the working principle and air supply method. The filter of the laminar flow hood is usually fixed inside the equipment and needs to be replaced and maintained regularly, while the filter of the FFU laminar air supply unit can be replaced outside the equipment, which is more convenient to operate.

In general, the laminar flow hood and the FFU laminar air supply unit are air purification equipment for clean environments, but they differ in airflow mode, equipment structure, and application scenarios. Choosing the right equipment mainly depends on the specific use needs and air purification requirements. Zhongjing Purification Production has rich production experience in both types of purification equipment. The laminar flow hoods and FFU laminar air supply units produced by it are widely used in dust-free workshops, purification workshops, clean rooms, ultra-clean rooms, GMP workshops, sterile operating rooms, and other fields. They can improve the cleanliness level, reduce noise and vibration, and significantly reduce work operation costs.