Carbon filters
Carbon impregnated bag filters
A G4 bag filter with synthetic media coated in powdered activated carbon, a drop-in replacement for an existing bag filter where some odour and fume reduction is needed.
- G4
- ISO Coarse 60%
- 20 or 25mm frame

Filter grade
G4 / ISO Coarse 60%
| Particulate grade | G4 (ISO Coarse 60%) |
|---|---|
| Filter role | Low-level odour reduction in bag housings |
| Carbon | Powdered activated carbon coating |
| Media | Carbon-coated synthetic pockets |
| Frame | Metal, 20mm or 25mm |
| Depths | To suit housing |
| Sizes | Non-standard sizes made to order |
| Testing | Tested to ISO 16890 and EN 779:2012 |
Standard sizes
Common sizes
Nominal imperial sizes with their actual metric face dimensions. Other sizes are manufactured to order.
| Nominal (inches) | Actual (mm) |
|---|---|
| 24 × 24 | 592 × 592 |
| 24 × 20 | 592 × 492 |
| 24 × 12 | 592 × 287 |
Product features
Construction and performance
- Helps with low, non-critical odour problems such as supply air drawn from busy roads, car parks or under flight paths.
- Synthetic media coated in highly active powdered activated carbon, housed in a metal frame.
- Can replace any existing bag filter where some odour reduction and fume adsorption is wanted.
- Available with a 20mm or 25mm frame.
- Non-standard sizes manufactured to order.
- Tested to ISO 16890 and EN 779:2012.
Key benefits
- The carbon particles adsorb low-level gaseous contaminants, removing unpleasant odours and greatly improving indoor air quality.
- High dust holding capacity for good particulate filtration alongside odour removal.
Typical applications
- Supply air near busy roads
- Buildings beside car parks
- Sites under flight paths
- Air handling units
- Offices
- General HVAC
Talk to the Maxi team
Interested in carbon impregnated bag filters?
Compare the range
How Carbon impregnated bag compares with other carbon filters
| Specification | Carbon impregnated pleated panel | Carbon impregnated bag | Carbon panel | Discarb | Carbon rigid |
|---|---|---|---|---|---|
| Particulate grade | G4 (ISO Coarse 85%) | G4 (ISO Coarse 60%) | Pre-filter required | Pre-filter required | M6 (ISO ePM10 65%) |
| Carbon | Powdered activated carbon coating | Powdered activated carbon coating | Bonded or loose fill activated carbon | Bonded or loose fill, 18kg – 67kg | Carbon synthetic minipleat |
| Filter class | Low-level odour | Low-level odour | 50% CTC | 50% CTC | 65% CTC |
| Frame | Card case (galvanised steel option) | Metal, 20mm or 25mm | Galvanised steel | Sealed case, no bypass | ABS moulded plastic |
| Depths | 22mm, 47mm or 96mm | To suit housing | 12mm, 20mm, 45mm, 95mm or 150mm | 197mm, 292mm, 397mm, 440mm or 597mm | 292mm |
| Best for | Low-level supply air odours | Odour reduction in bag housings | General odour and fume removal | Heavy odour and gas loads | Combined particle and odour control |
G4Carbon impregnated pleated panel filters
Low-level supply air odours
- ISO 16890
- ISO Coarse 85%
- Frame
- Card case or galvanised steel
50% CTCCarbon panel filters
General odour and fume removal
- Carbon
- Bonded or loose fill
- Depths
- 12mm – 150mm
50% CTCDiscarb filters
Heavy odour and gas loads
- Carbon
- 18kg – 67kg
- Depths
- 197mm – 597mm
M6Carbon rigid filters
Combined particle and odour control
- ISO 16890
- ePM10 65%
- Filter class
- 65% CTC
FAQs
Carbon impregnated bag filters: frequently asked questions
Carbon Impregnated Bag Filters combine particulate filtration with activated carbon media to help reduce odours, fumes, and airborne contaminants in ventilation systems.
Make an enquiry
Make an enquiry about Carbon Impregnated Bag Filters
Simply fill in the form below to make your enquiry and one of the Maxi team will get back to you as soon as possible.
Technical help without the hard sell
Need carbon impregnated bag filters?
Send the face size, depth, frame and quantity, plus the odour or gas you need to remove, and Maxi will confirm the right carbon filter and loading.
