1. Umbhoshongo wohlobo lwesifufufuthi kulula ukusebenza kuwo, futhi okuqoqiwe kukhiqizwa kwe-sulfurous acid kuzinzile, okunciphisa iphunga le-so2 futhi kunciphise ukungcoliswa kwemvelo.
2. Umbhoshongo wohlobo lwesifufula okulula ukulungiswa nokulungiswa. Uma umphumela ulungile, asikho isondlo cishe unyaka owodwa. Akukho-fiber fiber eqinisiwe epulasitiki noma fan ye-ceramic.
3. Umbhoshongo wohlobo lwesifutho sokufafaza unokutholwa kahle kwe-SO2. Izinga lokufaka i-SO2 ngokuvamile lingaphezulu kwama-95%. Izinga lokufakwa kwezinye imibhoshongo yesibabule ngokuvamile liseduze kwama-75%, elonga izindleko eziningi zesibabule ngonyaka owodwa.