Purifying apparatus for gaseous fluids

An apparatus for purifying gaseous fluids by separating contaminants existing therein comprising at least a first profile section with free longitudinal edges of borders of the profile section overlapping free longitudinal edges of the borders of a second profile section, said first and second profile sections being arranged in two opposite rows open in cross-section and channel-shaped to form separator areas, and projections starting at inner surfaces of the profile section and extending in the longitudinal direction, characterized in that the apparatus comprises a closed body with inflow and outflow openings for the fluid whose outer surfaces are formed by the separator areas which acts as the fluid inflow openings.