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Laminar Flow and Containment Equipment
Ceiling-Suspended Laminar Flow Hood
An overhead HEPA-filtered hood suspended above process equipment to create a defined downward clean-air zone without floor-mounted supports.
- Floor-Free Suspension
- Overhead HEPA Downflow
- Adjustable Hanging Height
- Optional Flexible Curtains
Product Introduction
The suspended hood mounts from the building structure above a filling point, inspection table or compact process machine. A rigid supply plenum distributes HEPA-filtered air through the lower diffuser, while adjustable threaded hangers set the operating height and maintain level. Optional clear curtains extend the protected zone without permanent walls. Structural loads, electrical routing and service clearance are coordinated above the ceiling, leaving the floor around the process accessible.
Key Features
A pressure-equalizing plenum supplies the complete lower diffuser evenly.
Height-adjustable hangers accommodate equipment and ceiling variations.
Flexible clear curtains can limit cross-drafts around selected sides.
A hinged or lift-down filter panel allows service from the clean side when required.
Customer Product Concerns
An overhead hood must deliver an even clean-air footprint while remaining structurally secure and serviceable above operating equipment.
Floor legs obstruct carts and cleaning around the process.Ceiling suspension leaves the floor perimeter open.
An uneven hanging frame tilts the airflow diffuser.Individually adjustable hangers allow the plenum to be leveled after installation.
Room cross-drafts shorten the protected downflow zone.Optional clear curtains extend from the hood edge around the critical process area.
Filter replacement conflicts with equipment below.A selected top-service or clean-side lift-down arrangement matches the available access route.
Typical Applications
Open-vial handling zonesClean filling-point coveragePrecision assembly islandsInspection tables beneath high ceilings
Technical Parameters
Typical configurable construction ranges for a ceiling-suspended laminar flow hood are listed below.
| Core Material | Anodized aluminum plenum frame with powder-coated steel skins and aluminum honeycomb diffuser panels |
|---|---|
| Panel Thickness | 40-80 mm plenum and diffuser assembly |
| Effective Width | 1200-3000 mm protected airflow width |
| Maximum Length | Up to 4000 mm protected airflow length |
| Steel Facing Thickness | 0.8-1.2 mm powder-coated steel plenum skins |
| Core Density | 30-50 kg/m³ aluminum honeycomb diffuser core |
| Thermal Conductivity | 1.5-2.5 W/(m·K) across the aluminum honeycomb diffuser assembly |
| Surface Finish | White powder-coated plenum with natural anodized frame and clear PVC curtain option |
| Joint Type | Bolted suspension frame with gasketed filter modules and sealed plenum flanges |
| Customization | Available based on the intended application and operating environment. |
Available Options
Top-service or room-side filter accessFlexible clear curtainsIntegrated LED lightingRemote or plenum-mounted EC fans
Planning a Ceiling-Suspended Laminar Flow Hood specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
