Nothing matches all of those filters.
Neutralising gels and blocks
Set out in a pot, working on the air in the room
Sprays, aerosols and liquids
For a quick knock-down or a misting line
Fan units and ozone generators
Disperse neutraliser, or treat the air in the duct
ONA Air Filter
- Brand ONA
- Type Odour Control
- Options 5 to choose from
- Price from £26.45
- Availability In stock
Grow Gadgets Ozone Generator
- Ozone output 15-50mg per hour, adjustable
- Voltage 240V
- Installation inline in ducting, after the carbon filter
- Function odour, bacteria and mould control
Uvonair UV-80H In-Duct Ozone Generator
- Duct fitting 8in (200mm)
- Coverage 5,000-10,000 cu ft (150-300m³)
- Output settings Low = 1 bulb, High = 2 bulbs
- Maintenance front-access panel for bulb replacement
Uvonair UV Ozone Generator for Grow Rooms
- Type Ultraviolet ozone generator, in-room
- Models Uvonair 1000, 3000 and 5000
- Coverage 30, 100 and 150 cubic metres
- Generation Ultraviolet lamp
Ona Air Breeze Fan Unit for Gel Pots and Odour Dispersal
- Brand ONA
- Type Odour Control
- Price from £49.49
- Availability In stock
Uvonair CD Series In-Duct Ozone Generator
- CD-800 8" (20cm) duct, 10,000-20,000 cu ft (300-600...
- CD-1000 (1 Cell) 10" (25cm) duct, 10,000-20,000 cu ft (300-60...
- CD-1000 (2 Cell) 10" (25cm) duct, 10,000-40,000 cu ft (300-1,...
- CD-1200 12" (30cm) duct, 10,000-100,000 cu ft (300-3...
ONA Air Cyclone Fan Odour Control Unit
- Airflow 121 CFM (approx. 206 m³/h)
- Coverage up to 464 m² (5,000 sq ft)
- Fan speeds five settings
- Power draw 12 W
Carbon filters
Clean the air on its way out
CarboAir 60 Carbon Filters
- Carbon bed depth 60mm, coarse high quality granular carbon
- 6" (150mm) x 660mm 1350 m3/h
- 8" (200mm) x 660mm 1700 m3/h
- 10" (250mm) x 660mm 2000 m3/h
Vivosun AeroZesh Carbon Filter for Grow Tent Odour
- Filter type Activated carbon odour filter with pre-filter
- Carbon Virgin Australian activated carbon, premium impor...
- Carbon rating 1050+ RC 48
- 4in (100mm) 448 m3/h
Mammoth Lite Carbon Filter for Grow Room Odour Control
- Brand Mammoth
- Range Mammoth Lite carbon filters
- Carbon bed depth 38mm
- Carbon type RC 48 Australian activated carbon
CarboAir 50 Carbon Filter for Grow Room Odour Control
- Brand CarboAir
- Model CarboAir 50
- Carbon bed depth 50mm
- Carbon type Premium virgin activated granular carbon
CarboAir 75 Carbon Filter for High VOC Grow Rooms
- Carbon bed depth 75mm
- Body length 1m (1000mm)
- Carbon type Virgin activated granular carbon
- Flange sizes 315mm (12") and 355mm (14")
CarboAir 100 Carbon Filter for Large Grow Rooms
- Carbon bed depth 100mm virgin activated granular carbon
- 10" x 660mm 3800m3/h, 28.35kg, 48 x 49 x 75cm
- 10" x 1000mm 5800m3/h, 45.5kg, 48 x 49 x 106cm
- 12" x 660mm 4250m3/h, 33.05kg, 54 x 54 x 75cm
The full range
Odour control beyond the carbon filter
A well-sized carbon filter deals with the air leaving your tent through the extraction run — it does nothing for the smell that escapes when you open the zip, or that clings to a grow room outside the filtered chain. That's the gap ONA products fill. ONA Gel comes in 426g tubs (£9.45) for a single room, 3.8kg (£42.95) for a whole grow room, and 20kg (£154.95) for anything commercial — the gel neutralises odour molecules rather than masking them with fragrance.
For a lighter touch, ONA Spray (250ml) and ONA Blocks (170g) suit smaller spaces or topping up between gel changes. A Grow Gadgets Ozone Generator (£29.95) is a stronger option for an empty room between grows — never run ozone in an occupied space. OCD Deo-Max Aerosol (£8.49) is the quick-fix option for a sudden smell after opening the tent.
Sizing your setup
Match gel size to room size, not tent size — the gel treats the air in the space around your extraction, so a 3.8kg tub for a spare bedroom is usually plenty. If your filter itself is undersized or the carbon is tired, that's a different problem: check our carbon filters range and the fan and filter sizing guide first. Free UK delivery over £60, or call 020 3488 0419 for advice on odour control for your specific room.