Cleanroom airflow procurement
FFU Systems for Controlled, Scalable Cleanroom Airflow
CleanroomLink helps overseas procurement teams, engineers, quality professionals, and factory managers source and integrate Fan Filter Units with verified specifications and a clear technical approval path.
H13–U17
Filter grade options
AC / EC
Motor selection
Selection Snapshot
Put the decision-critical parameters first
A complete RFQ reduces specification gaps, replacement risk, and delays during technical approval. Confirm the following inputs before requesting a quotation.
Filtration grade
HEPA H13/H14 or ULPA U15/U16/U17
Airflow requirement
Rated m³/h at specified static pressure
Power input
Voltage and frequency, such as 220V/50Hz or 110V/60Hz
Housing material
Al-Zn alloy, SUS304, or powder-coated steel
Motor type
AC or energy-efficient EC motor
Control method
Manual, local, or centralized group control
Specification Table
Map your facility requirements before the RFQ
Use the fields below as a technical checklist. Model-dependent values and project-specific limits should be confirmed during the RFQ stage.
| Parameter | Specification options / RFQ status |
|---|---|
| Filtration grade | HEPA H13/H14 or ULPA U15/U16/U17; confirm target grade at RFQ |
| Filtration efficiency | H13: 99.97% / H14: 99.995% / U15: 99.9995%; confirm test basis and requested grade |
| Rated airflow | Depends on model; specify m³/h and static pressure at RFQ |
| Initial resistance | To Be Confirmed; application and filter configuration dependent |
| Recommended final resistance | 2× initial resistance is typical; confirm operating limit for the selected model |
| Filter media | Glass fiber or PTFE; available configuration to be confirmed |
| Housing material | Al-Zn alloy, SUS304, or powder-coated steel |
| Dimensions | 575×575 mm, 1175×575 mm, or custom; verify ceiling grid and replacement footprint |
| Seal method | Gel seal or gasket seal; confirm compatibility with the installation system |
| Operating temperature / humidity | Available on Request; confirm process and ambient conditions |
| Dust-holding capacity | Depends on media, grade, and operating conditions; request model data |
| Leak testing method | PAO or DOP testing protocols; specify required method and report format |
| Power input | Depends on model; specify voltage, frequency, phase, and local electrical requirements |
| Motor and control | AC or EC motor; manual, local, group, Modbus, or RS485 options to be confirmed |
| Applicable system | T-grid cleanroom ceilings, retrofit installations, or custom HVAC integration |
Three Buying Scenarios
A supply approach matched to your project phase
Whether you need an FFU Systems supplier for a new build or a controlled replacement program, the sourcing route changes with the risk profile.
New cleanroom construction
Source standardized FFU units in project quantities for T-grid ceiling systems and uniform airflow across ISO Class 5–8 environments.
Facility upgrades and retrofits
Match existing dimensions, electrical footprints, seals, and control requirements to minimize installation downtime and compatibility issues.
OEM and contractor supply
Coordinate batch production and private-label requirements while maintaining agreed airflow, resistance, and documentation controls.
Performance Explained
Efficiency, resistance, and airflow must be selected together
A higher filtration grade can increase pressure drop. The selected motor and control strategy must then maintain the required airflow at the actual system static pressure—not only at a nominal free-air point.
Request an engineering reviewEfficiency versus resistance
H13, H14, and ULPA grades should be evaluated with the required static pressure and acceptable initial resistance. This prevents over-specifying motor power or under-delivering airflow.
Airflow uniformity
Face velocity consistency matters across the filter surface. Testing should address potential dead zones and confirm that the installed system can meet particle-control requirements.
AC versus EC motors
EC motors are often considered for facilities operating continuously because lower energy use and heat generation may support a faster lifecycle return. Final selection depends on the operating profile and controls.
Compliance Notes
Quality evidence should map back to the table
Ask for the relevant reports and acceptance criteria at the quotation stage so quality review is based on the same fields used for purchasing.
EN 1822
Request filter integrity and efficiency test reports where this protocol is required by your project.
ISO 14644
Confirm cleanroom compatibility and align the FFU selection with the facility classification and validation plan.
Batch consistency
Pre-shipment checks can compare airflow and resistance results with the technical specifications in the purchase order.
Custom Options
Adapt the unit to your process and building controls
Housing finishes
Explore anti-static or chemical-resistant coating requirements for pharmaceutical, biotech, and other demanding process areas.
Communication interfaces
Modbus or RS485 integration may support centralized BMS monitoring. Confirm protocol, addressing, and control scope during the RFQ.
Ducting adaptations
Custom inlet configurations can be reviewed for existing HVAC ductwork and retrofit constraints.
FFU systems versus standalone terminal filters
An FFU combines filtration and a dedicated fan for localized, modular airflow control. A passive terminal HEPA filter depends on upstream HVAC pressure and airflow. Choose an FFU when independent zone control, retrofit flexibility, or distributed airflow is important; confirm the system boundary when a centralized air-handling design is already established.
Packaging & Delivery
Protect the filter media from factory to installation
FFUs are sensitive equipment. Packaging and export documentation should be treated as part of the technical supply scope, not an afterthought.
Filter protection: reinforced corner guards and moisture-barrier film for the media during transit.
Crate security: fumigation-free wooden crates with clear fragile and orientation indicators.
Export documents: packing lists, available certificates of compliance, installation guides, and other agreed shipment records.
Frequently Asked Questions
Answers for procurement, quality, and export teams
Can you provide third-party testing reports?
Test reports from recognized laboratories may be available by batch or model. Specify the required ISO or EN test protocol, efficiency grade, leak test, and report format in your RFQ.
What standards or certifications should we request?
The appropriate documentation depends on your market and validation plan. Request the applicable EN 1822 evidence, cleanroom compatibility information, and any regional compliance documents before approval.
How is consistency managed across large batches?
Sampling and pre-shipment inspections can verify that airflow and pressure-drop results remain within the tolerance agreed in the purchase order. Define sampling scope and acceptance limits in advance.
What is the lead time for wholesale orders?
Lead time depends on quantity, filter grade, housing, controls, and customization. Standard units typically ship within 3–4 weeks; confirm the production schedule during quotation.
What packaging and export files are available?
The planned shipment can include protective packaging, packing lists, installation guides, and agreed compliance documents. Confirm destination-specific export requirements at order placement.
Which details must be confirmed at RFQ stage?
Confirm grade, efficiency test basis, airflow at static pressure, initial and final resistance, dimensions, seal, material, power, controls, operating conditions, testing, quantity, and delivery destination.
Send Your Specs
Discuss Your Application
Complex airflow, retrofit, material, or compliance requirements are best resolved before pricing. Send your specification sheet or project brief for a technical review.
Email:
Phone:
Address:
Technical inquiry