FLEXIFIBER type IP mist eliminators primarily use the impaction mechanism. Collection efficiencies on 98% sulfuric acid mist are essentially 100% on all particles greater than 3 microns, 85 to 97% on all particles 1 to 3 microns and 50 to 85% on 0.5 to 1.0 microns. Operating pressure drops are normally 125 to 180 mm (5 to 7 in) W.G.
Elements are normally rectangular in shape and are available in various metals, typically metal frames and glass fiber media.
Type IP fiberbeds are most commonly used in sulfuric acid plants.