Iyunguruzo ry’umuyaga ni igikoresho nyamukuru gikoreshwa mu kuyungurura ubuhumane buva mu kirere. Intumbero yayo nyamukuru ni ugufata ibintu bishobora gutera ingorane nk’inkungugu, ibihimba, umwotsi, n’umukungugu biciye mu gufata canke gufata umuyaga, kugira ngo umuyaga winjira mu bikoresho canke mu mirongo ngenderwako uhuye n’ingingo mfatirwako zisukuye. Ingingo ngenderwako y’ugukora kwayo ishingiye ahanini ku mibumbe mitoyi y’ibikoresho vy’iyunguruzo. Iyo umuyaga unyura mu kayunguruzo, ibintu binini kuruta ubunini bw’ibihengeri birazibira ata guca ku ruhande, mu gihe ibintu bitobito bishobora gufatwa biciye ku gutombokana kw’ibinyabuzima, ku gukwiragira canke ku gufatanya n’umuyagankuba. Nk’akarorero, igihimba c’urusenga c’ingero zitatu-gikozwe n’intsinga ziboshe z’impapuro z’iyunguruzo z’inyuguti z’ibirahuri gishobora gufata neza ibice binini kuruta 0,3μm, kigashika ku ntumbero y’ukuyungurura y’ibice 99,97%, bikagabanya cane ingorane zo gusambuka n’ugusenyuka kw’ibikoresho.
Ku bijanye n’ivyo gukoresha, amayunguruzo y’umuyaga arakoreshwa cane mu mashini y’ubwubatsi, mu gukuraho inkungugu mu nganda, mu moteri z’imiduga, mu bikoresho bikoresha umuyaga, no mu bindi bikorwa. Nk’akarorero, mu mashini y’ubwubatsi, amayunguruzo ashizwe hejuru-ashizwe hejuru, ari mu murongo, ateye igomwe-ashirwamwo, yihuta-rekura, atuma hashobora gusubirizwa vuba ibintu vy’iyunguruzo, bikaba bihuye n’ibidukikije bikomeye bifise inkungugu nyinshi. Mu bikoresho vyo gukusanya inkungugu, amayunguruzo y’ubuki yongera ahantu ho kuyungurura, akagira ubushobozi bwo gukora neza kandi akagira ubuzima buramba. Ikindi kandi, uguhitamwo ibikoresho biragira ingaruka zitaziguye ku bikorwa: urupapuro rwo kuyungurura rw’insinga z’ibirahuri rurashobora guhangana n’ubushuhe-n’imiti, bikaba bituma rubereye gukoresha imyuka y’umwotsi y’ubushuhe bwinshi-; polyester fibre akayunguruzo media ni vyinshi igiciro-vyiza kandi bibereye muri rusangi gukuraho inkungugu y'inganda.
Ivyagezwe vy'inganda bisobanura neza ibisabwa kugira ngo akayunguruzo k'umuyaga gakore neza. Nk’akarorero, ISO 5011 ivuga uburyo bwo kugerageza ubushobozi bw’akayunguruzo, isaba ko igipimo co kugumya c’akayunguruzo ku bihimba vy’umubiri vy’uburebure bwa 0,3μm gihuye n’agaciro kavuzwe ku rugero rw’uruja n’uruza rudasanzwe. Ikindi, ugutemba kw’inguvu z’akayunguruzo (uguhangana n’umuyaga) ni ikintu nyamukuru co gupima; n’ugutemba kw’inguvu birenze urugero bituma ibikoresho bikoresha inguvu nyinshi. Mu bikorwa, abakoresha bategerezwa guhitamwo ivyerekeye akayunguruzo bikwiye bishingiye ku mice y’ibikorwa. Nk’akarorero, inkungugu nyinshi zisaba amayunguruzo afise ukuri gukomeye kw’iyunguruzo (nk’aka 0.3μm), mu gihe ibidukikije bifise uburemere buke-bishobora gukoresha amayunguruzo afise amayunguruzo afise 5μm-10μm kugira ngo bihuze igiciro n’ubushobozi.
Ku bijanye no kwitaho, igipimo c’umuvuduko w’itandukaniro c’iyunguruzo ry’umuyaga gikwiye gusuzumwa ubudasiba. Iyo umuvuduko w’amazi urengeye incuro 2-3 agaciro k’intango, ikintu co kuyungurura gikwiye gusubirwamwo kugira ngo ntihagire ingorane zo gufunga n’ugufata umwuka. Ivyunyuro bishobora guhindurwa bishingiye ku mirongo ngenderwako nk’ahantu ho gushiramwo (hejuru canke ku ruhande) n’ibisabwa vy’urugero rw’uruja n’uruza (nk’ugukora 1000m3 y’umuyaga kw’isaha) kugira ngo bibe vyiza.
