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Cleanroom Air Distribution Systems
Cleanroom Ceiling Air Diffuser
A smooth flush ceiling diffuser that spreads filtered supply air across the ceiling plane while retaining a cleanable face and sealed plenum connection.
- Flush Cleanroom Face
- Four-Way Radial Supply
- Removable Core Panel
- Sealed Plenum Connection
Product Introduction
The cleanroom ceiling air diffuser distributes supply air after central or terminal filtration without introducing exposed fibres or difficult-to-clean recesses at room level. A formed steel face directs air radially in two, three or four horizontal directions, promoting mixing above the occupied zone. The core panel releases from below for wipe-down and access to an optional opposed-blade damper or balancing plenum. A perimeter gasket closes the diffuser frame to the ceiling, and the rear spigot uses a flexible or gasketed connection to limit leakage in the pressure branch.
Key Features
The smooth removable center section can be cleaned separately and returned to its indexed position.
A concealed perimeter gasket closes the frame against the clean ceiling surface.
Two-, three- and four-way cores adapt the throw pattern around walls, corridors and process equipment.
Customer Product Concerns
A general cleanroom diffuser must spread conditioned air without leaving exposed dirt traps or directing an excessive jet onto work positions.
A concentrated vertical jet creates draughts at benches below the outlet.A radial core turns supply air along the ceiling and reduces occupied-zone velocity through induction.
Ceiling dust collects behind fixed diffuser blades that cannot be removed.The detachable face exposes both surfaces for routine wipe-down without removing the frame.
Air leaks around the ceiling cutout instead of entering the room through the face.A perimeter seal and gasketed plenum connection keep the supply path inside the terminal assembly.
A four-way pattern washes contaminants from an adjacent wall or doorway.Directional core variants block the unwanted quadrant while retaining coverage of the intended room area.
Typical Applications
Mixed-flow pharmaceutical cleanroomsGowning and airlock ceilingsMedical-device assembly roomsLaboratory circulation and support zonesClean packaging areas
Technical Parameters
Common material and dimensional ranges for a flush cleanroom radial ceiling diffuser are shown below.
| Core Material | Formed powder-coated steel face and removable radial discharge core with galvanized rear plenum |
|---|---|
| Panel Thickness | 0.8–1.2 mm diffuser face and plenum sheet |
| Effective Width | 300–600 mm nominal ceiling-module width |
| Maximum Length | Up to 1200 mm for rectangular special-format diffusers |
| Steel Facing Thickness | 0.8–1.2 mm formed steel face and frame |
| Core Density | Approximately 7850 kg/m³ for the steel diffuser face and core |
| Thermal Conductivity | Approximately 45–60 W/(m·K) for the steel diffuser face and core |
| Surface Finish | Smooth white epoxy-polyester powder coating with optional 304 stainless-steel face |
| Joint Type | Gasketed ceiling frame with removable face and round or rectangular plenum inlet |
| Customization | Available based on the intended application and operating environment. |
Available Options
Two-, three- or four-way radial pattern304 stainless-steel visible faceBalancing plenum with measurement damperSpecial ceiling-grid frame and powder-coat color
Planning a Cleanroom Ceiling Air Diffuser specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
