I. Definition and Functions

Definition: The Fan Filter Unit (FFU) is a modular end-stage air purification device equipped with filtration capabilities and a self-contained power unit. It utilizes an internal fan to generate airflow, drawing air into the unit, purifying it through filters, and finally delivering clean air evenly to meet the air quality requirements of cleanrooms.

Functions:

Air Purification: Achieves high-efficiency air purification by utilizing multi-stage filters (such as pre-filters, HEPA filters, activated carbon filters, etc.) to remove dust, bacteria, viruses, and other particulate matter from the air.

Supply of Clean Air: Uniformly distributes the purified clean air into cleanrooms, ensuring air quality and environmental stability within.

Flexible Installation: Can be installed on ceilings or walls according to needs, adapting to various site requirements.

II. Composition and Structure

The FFU typically consists of the following components:

Fan: The power source that generates airflow, commonly using centrifugal fans.

Filters: Including pre-filters, High-Efficiency Particulate Air (HEPA) filters, or Ultra-Low Penetration Air (ULPA) filters, which filter out particulates and microorganisms from the air.

Housing: Protects internal components and forms an air duct, ensuring smooth airflow.

Controller (optional): Enables intelligent control of the device, including remote control and monitoring capabilities.

III. Characteristics and Advantages

High-Efficiency Purification: Provides high-efficiency air purification through multi-stage filters, ensuring air quality within cleanrooms.

Flexible Installation: Allows for installation options based on site conditions and aesthetic requirements, such as ceiling or wall mounting.

Low Noise: Designed with low-noise fans to minimize operational noise, avoiding disruptions to the work environment.

Intelligent Control: Some models feature intelligent control systems, enabling remote control and monitoring, enhancing convenience and smartness.

Wide Range of Applications: Widely used in cleanrooms, laboratories, medical facilities, electronics manufacturing, food processing, and other industries, catering to various needs across sectors and settings.

IV. Application Scenarios

The FFU is extensively applied in the following scenarios:

Cleanrooms: Such as semiconductor production lines and dust-free workshops, where strict control over airborne dust and particulates is essential.

Laboratories: Including biosafety laboratories and chemical laboratories, requiring cleanliness and sterility to ensure experimental conditions.

Medical Facilities: Like operating rooms and ICU wards, where air quality and sterility are critical to reduce infection risks.

Electronics Manufacturing: Production lines for electronic products like tablets and smartphones, where dust and particulates must be prevented from contaminating products.