1. Ingaruka y’icapa y’umutwe mushasha iyo ikoreshejwe mu ntango ni mbi gatoyi kuruta umutwe w’icapa yakoreshejwe. N’umutwe wa kera w’icapa, cane cane wihariye mu gucapura wino yera, dutegerezwa kwitwararika nimba igice c’umutwe w’icapa giturirwa, iyo nzira y’ugucapura irazibirwa canke atari .
2.Nimba turaba imashini, urashobora kubona ataco ushizemwo ibice vy'icapa rya UV nimba ari ivya kera kandi bishasha .
3.Inde nimba kode y’urubaho nyamukuru ruri ku gicapo ca UV kandi kode iri ku mutwe w’icapa ari imwe canke atari yo, kode y’imashini nshasha irahuye.
