Quote Originally Posted by smileibiza
I have a 3000m3 extractor with the coresponding carbon filter which has been running 24/7 for 3 years without smells.
How often is it recomendable to change it?
Life of filter will vary greatly depending how how many watts your using and the amount of time your filter is used. Most manufacturers says 18 to 24 months. Like you, mine runs 24/7 and has been going for 4.5 years.

Mine empties into my attic and no smell yet.
grey1223 Reviewed by grey1223 on . HOW LONG DO CARBON FILTERS LAST? I have a 3000m3 extractor with the coresponding carbon filter which has been running 24/7 for 3 years without smells. How often is it recomendable to change it? Rating: 5