Which PPI and thickness options are available?

The factory catalog lists 20, 30 and 35 PPI pore options, 3–100 mm thickness and standard sheet sizes of 1000 × 2000 mm or 1200 × 2000 mm. Final values are confirmed by selected model and order specification.

Is activated carbon foam the same as a rigid honeycomb activated carbon block?

No. This product uses flexible open-cell polyurethane foam as the carrier. A rigid honeycomb activated carbon block has a different structure and should be evaluated separately.

What information is needed to select activated carbon foam?

Provide the required PPI, thickness, sheet or cut dimensions, target odor or VOC, installation method, airflow condition and whether a flame-retardant option is required.

Activated Carbon Foam Filter Media

Q: What is activated carbon foam filter media?

Activated carbon foam filter media uses open-cell polyurethane foam as a porous carrier for powdered activated carbon. It is supplied as sheets or custom-cut pads for odor-control filter components.

Activated carbon foam filter media uses open-cell polyurethane foam as the carrier for powdered activated carbon. This flexible porous medium can be supplied as sheets or custom-cut pads for odor-control filter components.

Form: Foam sheet / Cut pad
Material: Polyurethane foam with powdered activated carbon
Application: Air purifier, ventilation, fume and odor-control filters
Customization: Pore density, thickness, dimensions and flame-retardant option

Catalog values are product-series references. Final values will be confirmed for the selected model and order specification.

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What is activated carbon foam filter media?

Activated carbon foam is an open-cell polyurethane carrier containing powdered activated carbon. The foam provides a porous support structure, while the activated carbon is used as the gas-phase adsorption medium. It is used in air purifier, ventilation, fume and odor-control filter components.

This flexible foam product is not the same as a rigid honeycomb activated carbon block. If you are comparing flexible roll media, ACF felt and carbon foam, see our activated carbon media selection guide.

How to select PPI and thickness

PPI means pores per inch and is used to describe the pore density of the foam. The factory catalog lists 20, 30 and 35 PPI, with thicknesses from 3 to 100 mm.

PPI describes the foam structure, not a filtration efficiency class or a guaranteed odor-removal performance. When comparing specifications, check the media thickness and airflow conditions alongside the pore density.

Check the available installation space, cut dimensions, airflow conditions, target odor or VOC, and any flame-retardant requirement. Final specifications are confirmed for the selected model.

Factory catalog reference

Technical Specifications

Values below come from the supplied factory catalog. Final specifications are confirmed by product model and order document.

Foam base: Polyurethane
Activated carbon source: Wood, coal or coconut shell
Activated carbon content: ≥50%
Benzene adsorption: ≥20%
Thickness: 3–100 mm
Standard sheet sizes: 1000 × 2000 mm or 1200 × 2000 mm
Pore options: 20, 30 or 35 PPI
Pressure drop: ≤35 Pa at 10 mm and 1.0 m/s (catalog reference)

Information needed for product selection

To introduce a suitable product, please share the following available information. A drawing or sample photo is also helpful for custom filter components.

Required pore density
Thickness and cut dimensions
Target odor or VOC
Flame-retardant requirement and installation method

OEM and conversion support

Junkang supports filter media supply and custom component development. Available project discussions include roll or sheet supply, cut-to-size conversion, lamination, framing and filter assembly according to the product type.

Buyer questions

Activated Carbon Foam FAQ

Short answers based on the current factory catalog and confirmed product structure.

Which PPI and sheet sizes are available?

The catalog lists 20, 30 and 35 PPI. Standard sheet sizes are 1000 × 2000 mm or 1200 × 2000 mm, and the listed thickness range is 3–100 mm.

Can the foam be supplied as cut components?

Yes. The available format includes foam sheets and custom-cut pads. Please provide the cut dimensions, thickness, quantity and installation drawing when available.

Is it used for particle filtration?

This product is primarily presented as an activated carbon adsorption medium for odor and gas-phase filtration components. If the incoming air also contains dust or particles, the complete filter design may require a separate particulate pre-filter.

What should I send for product selection?

Send the PPI, thickness, dimensions, target odor or VOC, airflow condition, installation method and flame-retardant requirement. Any drawing or sample photo is also helpful.

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Send any information you already have. All fields are optional, and the selected product is included automatically.