Eurostat, Luxembourg. 28251430 Machinery and apparatus for filtering and purifying gases (other than air and excl. those which operate using a catalytic process, and isotope separators): Exports 28251430 Machinery and apparatus for filtering and purifying gases (other than air and excl. those which operate using a catalytic process, and isotope separators) /in 1000 p/st /Reporting Country: Norway.