Inoshandiswa zvakanyanya mumakemikari, maindasitiri akareruka, indasitiri yezvikafu nezvimwe .. Zvakadai sechibage germ, chibage fiber uye mbatatisi yakasara kupera mvura muindasitiri yechechi, nezvimwewo, kuitisa zvakadzama mashandiro mberi, uye kugadzirisa huwandu hwekushandisa.