Lisefe tsa rona tse hloekisang metsi li etselitsoe ho fana ka tharollo e ikhethileng bakeng sa metsi a hloekileng. E ka etsoa ho latela litlhoko tsa hau tse khethehileng.
Re fana ka mefuta e mengata ea khetho, ho kenyelletsa le ho hloekisa ka mekhahlelo e mengata, theknoloji e tsoetseng pele, le lisebelisoa tse tšoarellang, ho tlosa litšila, litšila le lintho tse kotsi metsing.
Li-filters tsa rona li bonolo ho li kenya le ho li hlokomela, Fokotsa litšenyehelo tsa hau tsa kamora ho rekisa.