Three-quarter view of a compact white fan-powered HEPA ceiling module with blue EC controller

FFU and Terminal Air Purification Equipment

Fan-Powered HEPA Module

A compact ceiling module integrating an EC fan, sealed HEPA panel and room-side diffuser to add independent filtered supply at a selected cleanroom location.

Integrated HEPA and EC Fan
Room-Side Replaceable Filter
Ducted or Open Inlet
Low-Profile Ceiling Fit

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Product Introduction

The fan-powered HEPA module packages a backward-curved EC fan above a rigid H13 or H14 filter in a slim ceiling enclosure. It can draw air directly from the ceiling plenum or connect to a small duct collar for conditioned make-up air. The fan overcomes the terminal filter resistance locally, and a perforated room-side face spreads the discharge across the occupied zone. A removable diffuser exposes filter retaining clamps and service ports without disturbing the ceiling housing, making the module practical for laboratories, compounding suites and retrofit clean areas that need one additional filtered supply point.

Key Features

The integrated EC fan provides independent airflow without relying on high pressure from the central supply duct.

A room-side removable filter can be lowered through the diffuser opening while the ceiling casing remains installed.

Open-plenum and round-duct inlet arrangements support both recirculated and conditioned air layouts.

Differential-pressure and aerosol ports can be positioned behind the removable front plate for accessible testing.

Customer Product Concerns

A terminal HEPA housing cannot deliver design airflow when the available duct pressure is low or when a retrofit location lacks a dedicated supply branch.

The central duct system has insufficient spare pressure for another terminal HEPA outlet.The integrated EC fan supplies the pressure required across the local final filter.

Opening the ceiling void for filter replacement disrupts a controlled room and exposes hidden surfaces.Room-side clamps allow the filter to be removed downward through the diffuser opening.

A new duct branch is impractical above an occupied cleanroom retrofit area.An open-plenum intake enables local recirculation where conditioned supply is not required.

Test connections above the ceiling are difficult to reach during routine filter checks.Room-side pressure and aerosol ports remain accessible behind the removable face plate.

Typical Applications

Hospital pharmacy cleanroomsLaboratory clean suitesAseptic compounding roomsMedical-device assemblyCleanroom retrofit supply points

Technical Parameters

Representative construction ranges for a compact fan-powered HEPA ceiling module are shown below.

Core Material	Backward-curved EC fan with micro-glass H13 or H14 mini-pleat filter and aluminium frame
Panel Thickness	280-420 mm overall module depth
Effective Width	575-1170 mm nominal ceiling-grid width
Maximum Length	Up to 1170 mm standard module length
Steel Facing Thickness	0.8-1.2 mm powder-coated steel or 304 stainless-steel housing
Core Density	Approximately 90-120 kg/m³ compacted density of the HEPA pack fitted to the fan-powered ceiling module
Thermal Conductivity	Approximately 0.035-0.043 W/(m·K) for the HEPA pack fitted to the fan-powered ceiling module
Surface Finish	White epoxy-polyester powder coat with white perforated steel diffuser
Joint Type	Room-side compression or gel-seal filter interface with gasketed T-grid perimeter
Customization	Available based on the intended application and operating environment.

Available Options

Open-plenum or round duct inletH13 or H14 filterRoom-side replaceable gel-seal configuration0-10 V, BACnet or standalone speed control

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