Agafuka k'umunwa ni ubwoko bushya bw'udupfunyika. Ni agafuka gapfunyika gakozwe muri pulasitiki gafite imiterere y'inkunga igororotse hepfo n'umunwa hejuru cyangwa ku ruhande. Gashobora kwihagararaho nta nkunga iyo ari yo yose. Mu mpera z'ikinyejana gishize, udufuka tw'umunwa twigenga twakoreshejwe cyane ku isoko rya Amerika, hanyuma tugakundwa ku isi yose. Ubu twahindutse ubwoko bw'udupfunyika, dukunze gukoreshwa mu mitobe, jeli ihumekwa, ibinyobwa bya siporo, ibinyabutabire bya buri munsi n'izindi nganda.
Ishingiro rinini ryo guhagarara, byoroshye guhagarara iyo ridafite ikintu cyangwa ryuzuye.
Gufunga umuyoboro nta gusohora amazi
imiterere y'umukingo, byoroshye gutwara no gukoresha.
Ibicuruzwa byose bikorerwa isuzuma ritegetswe na laboratwari igezweho ya QA kandi bigahabwa icyemezo cy'ipatanti.