A na-ejikarị ígwè carbon eme ihe nchara ígwè, na elu na-ekpo ọkụ na-ekpo ọkụ, nke nwere ike igbochi oxidation.Enwere ike iji igwe anaghị agba nchara mee ya.Ngwongwo nchara nwere ikuku ventilashion, ọkụ, ikpo ọkụ, mgbochi skid, ihe mgbawa na ihe ndị ọzọ.