CAN FILTER Carbon Filter Ø200 mm - 900 m³/h - Odour Control for Indoor Growing

CAN FILTER Ø200 mm Carbon Filter: 900 m³/h of Perfectly Scrubbed Air

The CAN FILTER Ø200 mm carbon filter is the benchmark for growers who refuse to compromise on discretion. A 65 mm activated carbon bed holding 34.63 litres of media traps the volatile organic compounds responsible for odour before they ever leave your growing space. Built for 200 mm inline fans, it handles a peak airflow of 900 m³/h while keeping filtration efficiency at its best around 713 m³/h. This is equipment for serious installations: large grow rooms, multi-light spaces and drying areas.

Activated carbon works through sheer surface area. A single gram of activated media develops several hundred square metres of micro-porosity, and the odour molecules carried by the airflow bind to it through physical adsorption and never come back out. The thicker the bed and the longer the contact time, the higher the capture rate. At 65 mm, this CAN FILTER sits firmly in the premium bracket: where budget filters make do with 35 to 45 mm, it gives you a genuine safety margin, including late in flowering when the odour load peaks.

Choosing a Ø200 mm body is not a detail. An undersized filter becomes a bottleneck: the fan strains, static pressure climbs, real airflow collapses and noise rises. A 200 mm cross-section offers a far more generous passage than a 150 mm one, letting air move through the carbon bed without excessive turbulence. The result is lower pressure drop, a fan running inside its efficiency band, controlled power draw and a noise level that is genuinely liveable in a home.

To size your extraction properly, use one simple rule: the volume of your space should be exchanged roughly once per minute, then increased by 20 to 30 % to compensate for the resistance of the filter, ducting and bends. A 2.4 × 2.4 × 2 m room holds about 11.5 m³, which means close to 690 m³/h in theory and around 900 m³/h once losses are factored in. This filter is therefore sized to sit alongside a 200 mm fan on 4 to 6 m² of canopy, typically two to four high-power horticultural LED fixtures.

Full Technical Specification

What Sets This Filter Apart

Installation calls for a few simple but decisive precautions. Always place the filter upstream of the fan, on the intake side: loaded air passes through the carbon first, then the impeller. Hang it high, in the warmest zone of the room, where odours naturally accumulate. Use suspension straps rated for its weight and seal the duct connection with a worm-drive clamp and, if needed, aluminium tape. A leaking joint means unfiltered air bypassing your entire system.

Maintenance comes down to one rule: never wash the carbon and never let it get wet. The fabric pre-filter wrapped around the body, on the other hand, should be hand-washed every two to three months and dried thoroughly before refitting. That single habit noticeably extends carbon life by stopping dust and particles from blinding the active surface. It is also worth flipping the filter at mid-life to even out wear across the bed.

Two mistakes come up again and again with newer growers. First, running the filter in blowing mode rather than on intake, which cuts its effectiveness sharply. Second, letting relative humidity sit above 70 % for long periods, which saturates the carbon with water and blocks the adsorption sites. A dehumidifier or tighter irrigation management fixes the problem and will save you a whole filter over time.

Frequently Asked Questions