Fox Carbon Filters – 4" to 12" Budget Odour Filters
Fox Carbon Filters – 4" to 12" Budget Odour Filters
Brand names cost money. Carbon is what kills the smell. A good share of what you pay for a big-name filter is the name. Fox is built the other way round: the same kind of Australian activated carbon the premium brands use, machine-packed into a 38mm bed, in a no-nonsense metal body at a price that doesn't make you wince. Your neighbours won't know what's on the label. They just won't smell anything.
What you get
- Australian activated carbon. Highly porous carbon with a huge internal surface area for odour molecules to stick to.
- 38mm carbon bed, machine-packed. Tight packing means the carbon doesn't settle and leave gaps, so air can't sneak round it.
- Coned internal base. It spreads airflow evenly across the carbon instead of letting it rush through one spot.
- Black powder-coated spigot and base with a perforated steel body.
- Protective pre-filter sleeve included. It catches dust before it can clog the carbon.
Which one is yours?
| Size | Neck × body | Max airflow | Best for |
|---|---|---|---|
| 4" | 100 × 300mm | 350 m³/h | Small tents, cupboards, mushroom and herb chambers |
| 6" | 150 × 300mm | 600 m³/h | 80cm–1m tents, the classic 6" setup |
| 6" | 150 × 500mm | 800 m³/h | 1–1.2m tents and stronger 6" fans |
| 8" | 200 × 1000mm | 1,500 m³/h | Large tents and rooms on a powerful 8" fan |
| 10" | 250 × 1000mm | 1,900 m³/h | Grow rooms on 10" ducting |
| 12" | 315 × 500mm | See label | 12" systems with limited headroom |
Spare quick-release ducting clips
Also on this listing: quick-release ducting clips in 5", 8" and 12" for fixing ducting to a filter neck or fan. They tighten and release by hand, with no screwdriver needed.
Not just for growers
- Grow tents for herbs, chillies, tomatoes and flowering houseplants
- Mushroom fruiting chambers, which have a surprisingly earthy aroma
- Drying rooms, fermentation and home-brew corners
- Hobby rooms with paint, glue or resin smells (for odour only; a carbon filter is no substitute for proper fume extraction or a respirator)
Rose's Pro-Tip
"A budget filter rewards good habits more than a premium one does. Keep the sleeve clean, keep humidity under about 80%, and pick a filter rated a little above your fan rather than right on it. Do that and a Fox will run happily for well over a year."
How to match a filter to your fan
Start with the duct diameter. It's simplest when fan, filter and ducting all share one size. If they differ, pick a filter slightly bigger than the fan, never smaller. Ducting and the filter both add resistance, so your fan will move less air than its free-flow rating suggests. Choose a filter rated about 20% above your fan's free-flow figure.
FAQ
How long does a Fox filter last?
Typically 9–18 months, depending on humidity, dust and how hard it's worked.
Does it need a fan?
Yes. A carbon filter is passive, so it needs an inline fan of the same (or slightly smaller) duct size to pull air through it.