Description
High-Volume, Low-Noise Extraction for Bigger Rooms
The Mammoth Foam Box Fan Kit is built for large setups that need serious air movement without the noise that usually comes with it. The foam case keeps running noise down while the fan shifts big volumes of air, and the matched carbon filter and acoustic ducting come with it. Four kits are available: 250mm (10") at 1500m3/hour or 2500m3/hour, and 315mm (12") at 3250m3/hour or 4250m3/hour. Required airflow depends on room size and shape and on the quantity, power and type of lighting.
What's Included
- Mammoth Foam Box Fan - robust, high-performance and quiet at high volume
- Mammoth Prime Carbon Filter - matched to the fan's airflow, RC 48 activated carbon, 100% odour-free filtration for up to two years
- 10m Vortex Acoustic Ducting - insulated to quieten the airflow, lightweight and fitted without tools
Key Benefits
- 1500, 2500, 3250 or 4250m3/hour of extraction for mid-sized to genuinely large grow spaces
- Foam box housing keeps noise down at high airflow
- RC 48 activated carbon for up to two years of odour control
- Matched components - fan, carbon filter and ducting sized to work together
Heat, Humidity and Stale Air in Large Rooms
In a big room, weak extraction shows up quickly: temperatures climb under the lights, humidity sits high in the canopy overnight, and the stale air that follows brings mould risk and slow growth. Proper air exchange pulls heat and moisture out and draws fresh air in, so plants keep transpiring and taking up nutrient. A heavily lit space wants a 315mm kit at 3250m3/hour, or 4250m3/hour for the biggest rooms, while the 250mm at 1500m3/hour suits a more modest room that still wants a quiet box fan.
How to Use
- Work out airflow from room volume, lighting load and duct run, then pick your kit size
- Mount the carbon filter on the intake side of the fan
- Connect filter to fan and fan to outlet with the 10m acoustic ducting, held on each spigot with duct clips (not part of the kit)
- Keep duct runs short and bends gentle
- Replace the carbon filter after around two years, sooner in humid rooms
Technical Specifications
- Fan: Mammoth foam box fan
- Fan housing: foam panels, fire-resistant lining
- Fan mounting: anti-vibration
- Base plate: foam, supplied
- Filter: Mammoth Prime carbon filter
- Carbon: RC 48, 50 mm bed
- Filter casing: aluminium
- Filter life: up to 2 years
- Ducting: 10 m Vortex acoustic
- Ducting fit: no tools; fire-tested
- Duct clamps: not included
| By size | 10" / 1500m³/h | 10" / 2500m³/h |
|---|---|---|
| Duct size | 250 mm | |
| Fan airflow | 1,500 m³/h | 2,500 m³/h |
| Fan power | 250 W | 450 W |
| Fan current | 2.2 A | 3.6 A |
| Filter airflow | 1,800 m³/h | 2,500 m³/h |
| By size | 12" / 3250m³/h | 12" / 4250m³/h |
|---|---|---|
| Duct size | 315 mm | |
| Fan airflow | 3,250 m³/h | 4,250 m³/h |
| Fan power | 550 W | 750 W |
| Fan current | 4.5 A | 5.8 A |
| Filter airflow | 3,250 m³/h | 4,250 m³/h |
Frequently Asked Questions
Which kit size do I need?
Work out the room's volume in cubic metres (length x width x height) and multiply by 60 to find the m³/h that changes the air once a minute, then choose a kit well above that to allow for the carbon filter, ducting bends and lighting heat. The 250mm 1500m³/h kit suits a mid-sized room; heavily lit rooms usually need the 3250 or 4250m³/h kits.
Why choose a foam box fan over a wooden box fan?
The Mammoth's foam panels are much lighter than MDF and cope better with high humidity or the odd splash, and the thick internal insulation absorbs motor noise and is fire-resistant. The fan is also fixed into the box on an anti-vibration mounting, which keeps hum out of walls and frames.
Does the box fan have to be hung up?
No. Each fan comes pre-boxed with a foam base plate, so it can sit on the floor or a shelf on that plate as well as being hung from a ceiling or tent frame.
Are duct clips included?
The kit is the box fan, a Mammoth Prime carbon filter and 10m of Vortex acoustic ducting; clips are not part of the kit list. A pair of 10in or 12in clamps, such as padded fast clamps, holds the ducting firmly on the fan and filter spigots.
Works Well With
