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Frequently Asked Questions
What is a carbon panel good at?
Low-concentration comfort odour control.
It drops into an ordinary filter track.
Many organic vapours are handled well.
Office and retail complaints suit it.
It is the usual first response.
For that work it is proportionate.
What is it poor at?
Anything needing demonstrated removal.
Media depth is short, so contact time is short.
Removal per pass is modest.
Industrial concentrations saturate it in weeks.
Exposure limit compliance needs deep beds.
Specifying it there wastes money quickly.
How quickly does it saturate?
Faster than buyers expect.
Capacity is proportional to media held.
A panel holds comparatively little.
Concentration and airflow set the rate.
Predict it rather than waiting for smell.
Odour breakthrough means it already failed.
Does plain carbon suit every gas?
No, and this is a common assumption.
It handles many organic vapours well.
Several common inorganic gases it handles poorly.
Impregnated grades extend the range.
Blends address mixed contaminants.
Identify the gas before choosing media.
What does it cost in fan capacity?
A real pressure drop that must be available.
Adding one to a full filter bank can overload the fan.
Airflow then falls across the whole system.
Check available static before adding.
Retrofits are where this bites.
Measure rather than assume headroom.
Is a pre-filter needed?
Yes, and it protects the investment.
Dust blinds the carbon surface.
That blocks access to internal area.
Capacity is lost while carbon remains unspent.
A cheap panel upstream prevents it.
Change the pre-filter on its own schedule.
What if the smell persists after fitting one?
Identify the source rather than upgrading.
The gas may not be adsorbed by plain carbon.
Concentration may exceed what a panel can hold.
Air may be bypassing the filter entirely.
Infiltration may not pass through the plant at all.
Diagnosis beats a larger filter.