Abstract: A fiber bed for a fiber bed mist eliminator for removing aerosols and colloidal solids from a gaseous stream is provided having at least one non-woven sheet of hydroentangled ethylene/chlorotrifluoroethylene copolymer fibers.

Abstract: A fiber bed mist eliminator comprising at least two radially spaced and concentrically disposed fiber bed elements. The elements have an opened upper and lower end forming substantially vertical, independent channels through which gases can flow. The mist eliminator further comprises baffle means of imperious material, horizontally disposed at the upper and lower ends of the mist eliminator. The baffle means closes the bottom of one channel and the top of an adjacent channel, thus forcing a gas stream to pass through not more than one fiber bed element.

Abstract: The invention being a multi-phase thick bed filter assembly having a main filter element the primary function of which is to remove aerosols from a moving gas stream and having an associated, readily removable upstream pre-filter element designed to remove solid particulate matter from the gas stream before its impingement on the main filter.