Air Filters and Chemical Filtration

Activated Carbon Pocket Filter

A multi-pocket filter combining particulate media with a distributed activated-carbon layer to remove fine dust and light-duty gaseous contaminants in one HVAC stage.

Particle and Gas Filtration
Conical Pocket Geometry
Distributed Carbon Layer
Large Media Surface

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Product Introduction

The activated carbon pocket filter combines an upstream particulate layer, a bonded activated-carbon layer and a stabilizing downstream support within multiple tapered pockets. The long pockets provide a much greater media area than a flat panel and distribute both particle loading and carbon adsorption over the airflow. Stitched or ultrasonically welded spacers keep the pockets separated, while a steel or molded-polymer header fits standard bag-filter housings. It is intended for indoor-air-quality duty where moderate odors and particulates must be addressed without installing two separate filter stages.

Key Features

A composite pocket medium captures particles and adsorbs light concentrations of gaseous pollutants in the same airflow pass.

Tapered pockets remain separated at design flow and use the available housing depth efficiently.

The distributed carbon layer exposes adsorbent across a broad area instead of concentrating it near the header.

A rigid header provides a familiar replacement interface for standard front- or side-access bag-filter systems.

Customer Product Concerns

Separate particle and molecular stages consume valuable air-handler length, yet a thin carbon panel may not provide enough active area for the required airflow.

The air handler lacks space for a particle filter followed by a separate carbon cassette.Composite pocket media combines both functions within one standard bag-filter stage.

Flat carbon media has too little exposed area at the system airflow.Multiple deep pockets increase the available carbon-coated surface behind the same face opening.

Bag pockets touch and block one another at reduced airflow.Tapered geometry and internal spacing retain open channels through the filter bank.

Particulate loading covers the carbon before its adsorption capacity is used.A dedicated upstream particle layer protects the distributed carbon surface from coarse dust.

Typical Applications

Commercial building supply airHospital general ventilationAirport and transport facilitiesLaboratory support-area HVACCleanroom prefiltration with odor control

Technical Parameters

Representative construction ranges for a combination activated-carbon pocket filter are shown below.

Core Material	Synthetic or glass-fibre particulate medium laminated with bonded activated-carbon media
Panel Thickness	360–640 mm pocket depth
Effective Width	287–592 mm nominal header width
Maximum Length	Up to 640 mm pocket length
Steel Facing Thickness	0.6–0.9 mm painted or galvanized-steel header frame when specified
Core Density	Approximately 80–160 kg/m³ equivalent composite-media density including bonded carbon
Thermal Conductivity	Approximately 0.040–0.080 W/(m·K) for the dry composite pocket medium
Surface Finish	Painted steel or molded polymer header with dark carbon-loaded pocket media
Joint Type	Header-frame gasket or clamp-in pocket-filter connection
Customization	Available based on the intended application and operating environment.

Available Options

Five to ten pocket configurationsSteel or incinerable polymer headerParticulate efficiency selected for the HVAC stageBroad-spectrum or impregnated carbon layer

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