13X kwayoyin sieve samfuri ne na musamman wanda aka samar don saduwa da buƙatun musamman na masana'antar rabuwar iska.Yana ƙara haɓaka ƙarfin adsorption don carbon dioxide da ruwa, kuma yana guje wa hasumiya daskararre yayin aikin rabuwar iska.Hakanan za'a iya amfani dashi don yin iskar oxygen
13X nau'in simintin kwayoyin halitta, wanda kuma aka sani da nau'in sodium X nau'in ƙwayar ƙwayar cuta, wani ƙarfe ne na alkali aluminosilicate, wanda ke da ƙayyadaddun tushe kuma yana cikin nau'in tushe mai ƙarfi.3.64A bai kai 10A ga kowane kwayar halitta ba.
Girman pore na sieve kwayoyin 13X shine 10A, kuma tallan ya fi 3.64A kuma ƙasa da 10A.Ana iya amfani da shi don mai kara kuzari, haɗin kai na ruwa da carbon dioxide, haɗin kai na ruwa da iskar hydrogen sulfide, galibi ana amfani da shi don bushewar magani da tsarin matsawa iska.Akwai nau'ikan aikace-aikacen ƙwararru daban-daban.