Eminyakeni engu-20 ezayo, sizoqhubeka nokuthatha umgomo wokuhambisana nobuchwepheshe bamuva, sihlinzeke ngemikhiqizo ethembekile, senze ucwaningo ekuhloleni ukusetshenziswa kwe-ozone nokwandisa uhla lomkhiqizo we-BNP ozone ukuze sisetshenziswe kabanzi.