For ISO 5 Localized Clean Air Protection
Ceiling Suspended Laminar Flow Hood is a ceiling-mounted clean air system designed to create ISO 5 controlled environments through vertical unidirectional airflow.
Equipped with HEPA filtration and integrated fan modules, it provides continuous clean airflow to protect critical processes from airborne contamination.
Provides localized ISO 5 clean air for critical processes.
Uniform downward airflow helps minimize airborne contamination.
High-efficiency filtration for critical cleanroom applications.
Designed for integration with cleanroom ceiling structures.
Energy-efficient EC fans provide stable airflow with low-noise operation.
Customized dimensions, materials, controls and installation configurations.
| Parameter | Specification |
|---|---|
| Airflow Type | Vertical Unidirectional Airflow |
| Cleanliness Level | ISO 5 / Class 100 |
| Filter Efficiency | H14 HEPA / ULPA Optional |
| Air Velocity | 0.3-0.5 m/s |
| Housing Material | SUS304 / SUS316 |
| Fan Type | EC Fan |
| Noise Level | <65 dB(A) |
| Power Supply | Customized according to project requirements |
| Installation | Ceiling Suspended |
| Control System | LCD / PLC Optional |
The fan draws room air through pre-filters and HEPA filters, producing clean vertical airflow that continuously sweeps particles away from the critical working area.
Room air enters the unit and passes through the pre-filter.
The EC fan drives air through the H14 HEPA filter to remove airborne particles.
Filtered air is evenly distributed downward across the protected area.
Continuous clean airflow helps protect critical processes from airborne contamination.
① Size & Layout
Customized dimensions based on cleanroom layout and protected area.
② Stainless Steel Grade
SUS304 or SUS316 construction available.
③ HEPA Filter Configuration
Filter type and arrangement according to cleanliness requirements.
④ Fan Configuration
Airflow capacity and EC fan configuration based on hood size.
⑤ Control System
Airflow control, monitoring and PLC options available.
⑥ Ceiling Integration
Customized mounting and integration with cleanroom ceiling structures.
Ceiling Suspended Laminar Flow Hood provides localized ISO 5 clean zones for critical manufacturing processes.
Sterile filling and aseptic processing
Controlled assembly environment
Laboratory and biological process protection
Aseptic processing and critical clean operations.
Find answers to common questions about ceiling suspended laminar flow hood performance, filtration, customization, installation and maintenance.
A ceiling suspended laminar flow hood is a clean air system installed or suspended above a critical working area. It uses fan modules and HEPA filtration to deliver uniform vertical unidirectional airflow, creating a localized ISO 5 clean zone. It is commonly used to protect critical processes from airborne contamination in pharmaceutical, biotechnology, medical device, and other controlled manufacturing environments.
An FFU (Fan Filter Unit) is typically installed within a cleanroom ceiling grid to supply filtered air as part of the overall cleanroom ventilation system. A ceiling suspended laminar flow hood is a complete localized clean air system designed to provide controlled vertical unidirectional airflow directly over a specific process or working area. Its dimensions, airflow configuration, filtration, and installation can be customized according to project requirements.
A ceiling suspended laminar flow hood is typically designed to provide an ISO Class 5 (Class 100) localized clean zone under specified operating conditions. Actual cleanliness performance depends on factors such as HEPA filter efficiency, airflow velocity and uniformity, surrounding room conditions, equipment layout, and installation. The system should be tested and qualified after installation according to applicable cleanroom standards and project requirements.
HEPA filters do not have a fixed replacement interval. Their service life depends on operating hours, particle loading, pre-filter condition, airflow requirements, and the cleanliness of the surrounding environment. Replacement is generally recommended when the filter reaches the specified final resistance, required airflow can no longer be maintained, or the filter fails an integrity test. Regular differential pressure monitoring and periodic HEPA integrity testing help determine the appropriate replacement time.
Yes. Ceiling suspended laminar flow hoods can be customized according to cleanroom layout, process requirements, and installation conditions. Common options include overall dimensions, SUS304 or SUS316 stainless steel construction, HEPA/ULPA filter configuration, fan system, airflow velocity, control and monitoring functions, lighting, and ceiling integration. Customized engineering drawings can also be provided for project coordination and installation.
The laminar flow hood is typically supported from the building or approved ceiling support structure using suspension rods or a dedicated mounting frame. The installation height and position are determined according to the required working zone, equipment layout, and cleanroom ceiling design. Electrical connections, airflow adjustment, filter integrity testing, and airflow qualification should be completed after installation to verify that the required clean air performance is achieved.
