Mu myaka ya vuba aha, imyuka ihumanya ikirere ya VOC (Volatile Organic Compounds) yabaye intandaro y’ihumana ry’ikirere ku isi. Gutera ifu ikoresha amashanyarazi ni ubwoko bushya bw’ikoranabuhanga ryo gutunganya ubuso nta VOC isohora, kuzigama ingufu no kurengera ibidukikije, kandi bizagenda bihangana buhoro buhoro n’ikoranabuhanga risanzwe ryo gushushanya ku rwego rumwe.
Ihame ryo gutera ifu ikoresha amashanyarazi ni uko ifu ishyirwamo ingufu zikoresheje amashanyarazi ikanashyirwa ku gikoresho cy’akazi.
Ugereranyije n'ikoranabuhanga risanzwe ryo gusiga amarangi, gutera ifu bifite ibyiza bibiri: nta VOC isohora kandi nta myanda ikomeye. Irangi ritera imyuka myinshi ya VOC, kandi icya kabiri, iyo irangi ritageze ku kintu cyo gukoraho rigagwa hasi, riba imyanda ikomeye kandi ntirishobora kongera gukoreshwa. Igipimo cyo gukoresha gutera ifu gishobora kuba 95% cyangwa kirenga. Muri icyo gihe, imikorere yo gutera ifu ni myiza cyane, ntabwo ishobora gusa kuzuza ibisabwa byose bya irangi risiga amarangi, ahubwo hari n'ibipimo bimwe na bimwe biruta irangi risiga amarangi. Rero, mu gihe kizaza, gutera ifu kuzagira umwanya wo kugera ku ntego yo kutagira umwuka wa karuboni ku rwego rwo hejuru.