Activated carbon cloth — also called activated carbon fabric or ACF cloth — and the matching felt. We spin, carbonize and steam-activate the fiber ourselves, so this is not carbon powder glued onto fabric. Roll goods or die-cut to your drawing.
- Form
- Roll goods · die-cut part · laminated shape
- Felt
- 0.8–4.5 mm · strength >5 kg/m · ash <2%
- Cloth
- 80–350 g/m² · 900–1200 m²/g
- Iodine
- 850–1800 mg/g across five grades
+1 (610) 462-3247 · sales@carbotopiafiber.com · Compare all materials →
Published values are product-series references. Final values are confirmed against the selected grade and the order specification. Free sample, one time; shipping is not included.
Factory catalogue reference
Grades & adsorption data
Five grades, SY-1000 through SY-2000. The figures below are the factory catalogue values for the fiber itself; felt and cloth are made from the grade you select.
| Grade | Surface area m²/g | Iodine mg/g | Benzene wt% | Methylene blue ml/g |
|---|---|---|---|---|
| SY-1000 | 900–1000 | 850–900 | 30–35 | 150 |
| SY-1300 | 1150–1250 | 1100–1200 | 38–43 | 180 |
| SY-1500 | 1300–1400 | 1300–1400 | 45–50 | 220 |
| SY-1600 | 1450–1550 | 1400–1500 | 53–58 | 250 |
| SY-2000 | 1800–2000 | 1700–1800 | 70–80 | 300 |
Pore volume 0.8–1.2 ml/g · mean pore 17–20 Å · pH 5–7 · ignition >500 °C · width to 2 m · monofilament 10–20 μm. A third-party report measures our ACF felt at iodine 1238 mg/g — a result we can hand over, not a claim.
Why fiber, not granules
Over 90% of the pore volume is micropore, most of it opening directly on the fiber surface — there is no long channel to travel first. Bulk density is low and airflow resistance is roughly one third that of granular carbon, so a thinner layer does the same job.
On sulfur and amine compounds — mercaptans, which is what fecal odor is — it adsorbs several to tens of times more than granular carbon. It is not the default answer for every job: it costs more than filter cotton, and ammonia is where zeolite does the work instead.
More detail
Formats and where it is used
Viscose ACF needle felt, plain or twill cloth, knitted 120 gsm die-cut pads, and shapes laminated onto foam, HEPA or nonwoven as one part. Flame-retardant and medical-grade variants available. To compare all five sheet constructions, see activated carbon filter sheets.
Buyer questions
Frequently asked questions
Short answers drawn from the specifications on this page.
What is the difference between activated carbon cloth and activated carbon felt?
Both are made from the same activated carbon fiber, in the grade you select. Cloth is a thin woven fabric, plain or twill, at 80–350 g/m². Felt is a needle felt 0.8–4.5 mm thick. Choose by the space in your housing and how the part is built.
Which iodine grade of activated carbon fiber should I choose?
We make five grades, from 850 to 1800 mg/g iodine. Within the same material and test method, a higher iodine value generally means more small-molecule capacity, but it also costs more. The right grade depends on the target molecule, the airflow and the space available, so send the duty and we suggest two or three to compare.
Is activated carbon fiber better than granular activated carbon?
For thin, low-resistance layers, usually. Over 90% of its pore volume is micropore opening directly on the fiber surface, and airflow resistance is roughly one third that of granular carbon. On mercaptans it adsorbs several to tens of times more. It costs more than filter cotton, and for ammonia zeolite is the better choice.
Can activated carbon fiber felt be die-cut to my drawing?
Yes. We supply roll goods up to 2 m wide, die-cut parts, and shapes laminated onto foam, HEPA or nonwoven as one part. Send a drawing, a DXF or a photo of the part with a ruler.
Is activated charcoal cloth the same as activated carbon cloth?
Yes. Activated charcoal cloth, activated carbon fabric and activated carbon fiber (ACF) cloth are names for the same material: a textile made of activated carbon fibers. We supply it as cloth at 80–350 g/m² and as felt at 0.8–4.5 mm, with iodine values from 850 to 1800 mg/g. For liners and patches in apparel and sports gear, see odor-control fabric for apparel.
Send the part, or the drawing
We come back with two or three candidate grades and constructions to compare on odor performance, airflow and service life — and material to test.
Prefer to send a photo? Message us on WhatsApp — a picture of the part is usually enough to start.
ISO 9001 · ISO 14001 · REACH · RoHS · TSCA · Prop 65 · TDS and SDS on request. Where a thicker, cheaper layer fits, filter cotton is usually the better build. See certifications and the factory.
