Mammoth Foam Box Fan Kit - Quiet, High-Output Extraction for Larger Grow Rooms
Best for: larger or commercial-scale growers who need serious extraction airflow without the noise a bare inline fan produces at the same output.
Our thoughts
This is proper commercial-scale extraction kit, not something you'd put in a single 1.2m tent. The foam-lined housing genuinely cuts noise down compared to a bare fan pushing the same volume of air, which matters a lot once you're running extraction for hours on end in a working space.
The Mammoth Foam Box Fan Kit pairs a high-output inline fan with a noise-reducing foam-lined housing, built for growers who need to move large volumes of air quietly. The kit comes complete with a Mammoth carbon filter, 5 metres of black combi ducting, and duct clips, so you've got a full extraction setup ready to connect rather than needing to source filter and ducting separately.
It's available in two sizes: the 10" fan delivers around 2500m³/hr, while the 12" fan steps up to around 3250m³/hr, giving you a choice depending on room size and how much air you need to shift per hour. The foam box housing around the fan absorbs a meaningful amount of the noise a bare fan would generate at the same airflow, making it a better fit for spaces where continuous fan noise is a real consideration.
How it compares
High-output extraction can be built a few different ways.
- A Vortex Powerfan paired with separate acoustic ducting or a silencer achieves a similar noise-reduction goal but as separate components you buy and fit individually rather than one matched kit.
- Rhino Pro fan-and-filter combos cover similar commercial-scale extraction ground under a different brand, worth comparing airflow ratings directly against room size before choosing.
- A bare inline fan without any acoustic housing will move the same air for less money but noticeably louder, which matters in an occupied or long-running commercial space.
For growers who specifically need quieter running at commercial airflow rates, the foam box design earns its higher price over a bare fan of equivalent output.
Usage guidance
Setting up extraction correctly means getting the order and sizing right.
Sizing to your room
Match the 10" or 12" fan's airflow rating to your room volume, aiming for enough air changes per hour to keep temperature and humidity under control.
Connection order
Typically run air through the carbon filter first, then through the fan, then out through the combi ducting, so odour is scrubbed before the fan pushes it out, though some setups run the fan first depending on room layout and noise position.
Fitting ducting
Use the supplied duct clips to secure the combi ducting at each joint for an airtight run rather than relying on tape alone.
Positioning for noise
Where possible, site the fan and filter away from the immediate working area to make the most of the foam housing's noise reduction.
Technical specifications
- Fan size options: 10" (approx. 2500m³/hr), 12" (approx. 3250m³/hr)
- Housing: Foam-lined, noise-reducing box construction
- Kit contents: Fan, Mammoth carbon filter, 5m black combi ducting, duct clips
- Use case: High-output, noise-reduced extraction for larger/commercial rooms
Who this is for
- Larger-scale or commercial growers needing serious extraction airflow
- Growers in shared or occupied spaces where fan noise is a genuine problem
- Anyone wanting a complete fan, filter and ducting kit rather than sourcing parts separately
- Rooms that need more airflow than a standard tent-sized inline fan can provide
Particularly well suited to commercial or large-room growers rather than a single small tent.
Our take
This is priced like the commercial-scale kit it is, and it earns that price through genuinely reduced noise at serious airflow rates plus a complete, matched kit rather than parts bought separately. Not for a small tent, but a solid choice for a larger operation.
Proper kit at a price that makes sense for growers running extraction at a scale where noise and airflow both matter.
