Embonini yamandla enuzi, asetshenziswa emanzini angcolile anemisebe, emoyeni, exhaust gas, nasemithonjeni ewuketshezi ukuze kuncishiswe ngempumelelo ukukhishwa kwezinto ezikhipha imisebe, kuqinisekiswe ukuphepha kwabasebenzi kanye nemvelo, kanye nokwenza ngcono ukusebenza kahle kokukhiqiza.