Terminal Filter Boxes (HEPA)

Mini-pleat HEPA at the outlet, up to 99.97%

Filter: Mini-pleat HEPA cells
Efficiency: Up to 99.97%
Airflow: 250 – 2,000 m³/h per box
Housing: Gas-tight welded, with test points

ISO 9001 Quality management

Overview

The ultimate defence against micro-contaminants and odorous substances. A terminal filter box puts the HEPA filter at the very end of the duct, so the air is filtered as it enters the room — the standard for air purity and sterilisation in medicine, biology, pharmacy and sensitive industry.

The housing is gas-tight welded sheet steel, stove enamelled, with a side or back entry duct connection and a clamping device that seats the mini-pleat HEPA cell evenly, capturing up to 99.97% of particles, bacteria and viruses. It comes with or without a leak test device, with measuring points for the operating pressure differential, and a room-side manometer connection on request that doubles as a smoke aerosol test point.

The diffuser face is anodized aluminium extrusion or perforated stainless steel, held by a central fixing for uniform clamping pressure and easy removal for filter changes and decontamination. An optional damper, set from the face with a key, balances each outlet. Boxes take cells of 305, 457 or 610 mm square, handling 250 to 2,000 m³/h, as individual units or a complete system.

Configurations & options

With damper
Without damper
Aluminium face
Perforated stainless face
Individual unit or system

Materials & finishes

Gas-tight welded, stove-enamelled steel housing
Anodized aluminium or perforated stainless steel face
Galvanized steel plenum

Technical specifications

Housing

Construction: Gas-tight welded sheet steel, stove enamelled
Connection: Side or back entry
Filter seating: Clamping device
Testing: Leak test device; pressure measuring points
Aerosol test: Room-side manometer connection, on request

Face and damper

Diffuser face: Anodized aluminium or perforated stainless steel
Fixing: Central, for uniform clamping and easy removal
Damper: Optional, set from the face with a key

Filter cells

305 × 305 mm: 78 or 150 mm deep, 250 m³/h
457 × 457 mm: 78 or 150 mm deep, 600 m³/h
610 × 610 mm: 78 – 292 mm deep, 600 – 2,000 m³/h
Efficiency: Up to 99.97%

Certifications & standards

What each mark on this product means, who issues it and how it applies here.

All certifications & standards

ISO 9001

Quality Management Systems

Issued by International Organization for Standardization (ISO)

What it is

The international standard for quality management systems. A certified company works to documented processes, checks its output against them, records what it finds and corrects the cause of any fault, and is audited on all of it by an independent certification body.

On this product

Designed, fabricated and inspected under our certified ISO 9001 quality system: the same documented process for every unit, whichever of our factories builds it.

How is the filter seal tested?

The housing can carry a leak test device and measuring points for the pressure differential, and a room-side manometer connection on request serves as the smoke aerosol test point.

How much air does one box handle?

250 m³/h with a 305 mm cell, 600 m³/h with 457 mm, and up to 2,000 m³/h with a deep 610 mm cell.

How is the filter changed?

From the room: the diffuser face comes off at its central fixing, giving direct access to the clamped cell for replacement and decontamination.

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