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?
I'm sorry I can't remember the name right now but when you replace the carbon be sure it's the 'good' stuff. It comes from a mine in Austrailia. There are different grades of activated carbon. The best will have the most surface area.I suspect some of us may be using inferior carbon and thus your filter life will be shortened. Since I can't remember the name I will say that Price is a good indicator of quality.