Activated carbon foam — carbon where the air already goes.
Open-cell polyurethane foam carrying activated carbon powder or granules. The open cell structure lets air pass through the media rather than around it, so you get contact time without the pressure penalty of a packed bed.
Pore 10–60 PPI · carbon content typically ≥50%, customisable · width to 1.2 m · length 2 m · lamination available. Samples are free; shipping is not included.
Specifications
| Property | Value |
|---|---|
| Base material | Open-cell polyurethane foam |
| Adsorbent | Activated carbon powder or granules, bonded to the foam |
| Carbon content | Typically ≥50% — measured, and customisable to your requirement |
| Pore density | 10–60 PPI |
| Block thickness | Up to 800 mm, sliced down to the sheet thickness you need |
| Width | 1200 mm maximum · 1000 mm standard |
| Length | 2000 mm |
| Finishing | Film lamination · die cutting · cut to sheet, pad or roll |
| Airflow & pressure drop | Varies with pore density — data available on request for the grade you select |
PPI is the trade-off dial. Coarse pores mean low resistance and short contact time; fine pores mean the opposite. Tell us the airflow and the depth you have, and the pore grade follows from those two numbers.
What it is, and what it is not
Carbon-loaded PU foam
This is what the term means in air filtration, and it is what we make: a polyurethane sponge with carbon bonded onto the cell walls.
Not structural carbon foam
The rigid, all-carbon material used in thermal and battery work is a different product. We do not produce it — worth saying plainly, because the two share a name.
Laminated if it must not shed
Loaded foam can release fines. Where that is unacceptable — a consumer appliance, an enclosed pet product — it ships film-laminated.
How it compares to our other media
Foam is the low-resistance option. Where the same depth has to carry more carbon, granular carbon mesh reaches ≥80% and is the only media we publish an ammonia figure for. Where the space is very shallow, ACF felt works in a millimetre or two — and unlike foam, the ACF fibre is the carbon rather than a carrier for it.
Where it is used
Air purifier pre-filters
Range hood filters
Cabin & equipment air
Aquarium sponge filters
Odour & VOC control
Enclosure & cabinet venting
Send the part, or the drawing
Airflow, the depth available and whether shedding matters. From those three we come back with a pore grade and thickness to compare — and material to test.
Request a samplePrefer to send a photo? Message us on WhatsApp — a picture of the part is usually enough to start.
ISO 9001 · ISO 14001 · REACH · RoHS · TDS and SDS on request. See certifications, factory, browse all materials, or see how we laminate and die-cut it into a finished part.