Active Carbon Filter - Renovent Flair 325/400The carbon filter for the Flair 200 filters chemical contaminants and odours from the air of, for example, fireplaces, wood burning stoves and in environments close to industry. The filter is highly effective against nitrogen oxides (NOx) and sulphur dioxide (SO2). The carbon filter has filter class ISO ePM2. 5 (M5). Suitable for: Flair 300, 325 and 400W: 245mm x L: 510mm