Filtration systems using sintered metal media for gaseous, solid and liquid separation have proven to be an effective and efficient alternative to other separation methods that can be vulnerable to pressure peaks, high temperatures and/or corrosive environments. Sintered metal is highly efficient in removing particulates, delivers a reliable performance, is easy to clean and has a long life in comparison with leaf filters, filter bags and plate and frame filters. Application A. Solid gas separation J. Cooling B. Muffler, silencer K. Uniform gas,well-distributed, diffuse gas or oil or heat C. Air purification L. Breathable protection D. Filtering oil M. chemical industry E. Dedusting, Isolation dust, dustproof N. Chemical F. Gas-oil dissociation O. Chemical fiber G. Gas liquid separation P. Filtration for high temperature environment H. Moistureproof Q. High pressure reverse wash filtering I. Heat insulation R. Acid and alkali corrosion environment filtering candle filters and porous tubes are long, cylindrical filters with thin walls, i.e. they have a high length-to-diameter ratio. The cylinders can be hollow or blind, and have a minimum wall thickness of 1 mm. The material used for these filters is AISI 316L stainless steel. They are made by isostatic compaction of powder in a flexible mould with the negative shape of the part, and then sintered. The pore size is adjusted by changing the compaction pressure andor the particle size of the powder.