There are Carbon Molecular Sieves offered by us that are new and one of the few non-polar adsorbent that specializes in separating oxygen from nitrogen under the normal temperature and pressure, also it is an important part in natural gas processing. The sieves are a special class of ACs having small pore sizes with a sharp distribution in a range of microspores, as compared with other ACs. These sieves are carbonaceous materials that have a narrow micropore size distribution. A sieve is a material with very small holes of precise and uniform size. The carbon molecular sieves are very effective.