Vaudze zvakaitika uye kumbira rubatsiro rwavo. Mapurisa anofanira kuita zvinotevera kana achipindura chiitiko:
- Ita nhaurirano dzakasiyana neakabatwa nechisimba
- Bvunza nezve nhoroondo yekushungurudzwa
- Ipa zita remupurisa, bheji uye nhamba dzeripoti
- Ipa nhamba dzerunhare dzenzvimbo inochengeterwa mhirizhonga mudzimba, nhamba yekufona kuti uwane ruzivo nezve nyaya yacho uye upe ruzivo nezve chero chirongwa chemunzvimbo inomiririra mhirizhonga.
- Ita rondedzero yakanyorwa yechiitiko chacho kunyange kana kusungwa kusina kuitwa
Iva nechokwadi chekubvunza zita remupurisa, bheji nenhamba dzeshumo, uye kumbirawo kuti rondedzero yemapurisa iiswe.
Mupurisa anofanirwa kusunga munhu anoshungurudza munhu anokanganisa zvakanyanya kana kushandisa chombo panguva yechiitiko. Mapurisa anogona kukumbira kuti mhirizhonga yemudzimba kana dzimwe mhosva dzikwidzwe kana munhu asungwa.