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FFU and Terminal Air Purification Equipment
Integrated HEPA Clean Air Supply Module
A complete ducted ceiling terminal combining an inlet damper, pressure-equalizing plenum, sealed HEPA or ULPA filter and room-side diffuser in one cleanable module.
- Balanced Ducted Supply
- HEPA or ULPA Final Stage
- Room-Side Test Access
- Interchangeable Diffuser
Product Introduction
The integrated HEPA clean air supply module receives conditioned air through a top or side duct collar and distributes it across a sealed final filter through an internal equalization plenum. A balancing damper can be adjusted from the cleanroom side, while separate upstream pressure and aerosol ports support routine checks without opening the ceiling void. The module includes the filter seat, retaining hardware and removable perforated or radial diffuser, so the complete air terminal can be installed as one coordinated ceiling component rather than assembled from unrelated parts on site.
Key Features
Room-side damper access allows supply volume to be balanced after ceiling installation.
Separate upstream pressure and challenge ports keep routine test connections accessible below the ceiling.
A quick-release face accepts different diffuser patterns without replacing the sealed plenum.
Customer Product Concerns
A cleanroom supply point must convert uneven duct air into a sealed, testable and draught-controlled final discharge without consuming unnecessary ceiling space.
High inlet velocity loads one part of the HEPA face and leaves another area underused.The pressure-equalizing plenum diffuses the incoming jet before it enters the final filter.
Ceiling access is obstructed by services when the airflow damper needs adjustment.A room-side adjustment mechanism reaches the inlet damper through the removable diffuser.
Temporary hoses for filter testing are routed through the occupied ceiling void.Dedicated room-side pressure and aerosol ports connect directly to the upstream plenum.
One discharge pattern creates local draughts after the room layout changes.Perforated, swirl or radial front plates can be exchanged while the terminal body remains installed.
Typical Applications
Pharmaceutical production suitesHospital clean treatment roomsBiotechnology laboratoriesMedical-device assembly areasDucted microelectronics cleanrooms
Technical Parameters
Representative construction ranges for an integrated ducted HEPA clean-air supply module are listed below.
| Core Material | Welded pressure plenum with micro-glass H13-H14 HEPA or optional ULPA mini-pleat filter |
|---|---|
| Panel Thickness | 250-450 mm overall module depth excluding the duct collar |
| Effective Width | 575-1175 mm nominal ceiling-module width |
| Maximum Length | Up to 1175 mm standard module length |
| Steel Facing Thickness | 0.8-1.2 mm welded powder-coated steel or 304 stainless-steel plenum |
| Core Density | Approximately 90-120 kg/m³ compacted density of the mini-pleat pack integrated into the clean-air supply module |
| Thermal Conductivity | Approximately 0.035-0.043 W/(m·K) for the mini-pleat pack installed in the integrated clean-air supply module |
| Surface Finish | Cleanroom-white epoxy-polyester powder coat or brushed 304 stainless steel |
| Joint Type | Welded plenum with gasketed duct collar, compression or gel filter seat and sealed T-grid perimeter |
| Customization | Available based on the intended application and operating environment. |
Available Options
Top or side duct collarManual or room-side adjustable inlet damperH13, H14 or ULPA final filterPerforated, radial or swirl diffuser
Planning a Integrated HEPA Clean Air Supply Module specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
