China feme e etsang li-ventilator ke k'hamphani e hlahisang li-ventilator tsa boleng bo holimo molemong oa bongaka.Li-ventilator tsena li etselitsoe ho thusa bakuli ba nang le khatello ea ho hema ho phefumoloha habonolo le ka nepo.E entsoe ka theknoloji e tsoetseng pele le lisebelisoa tsa boleng, li-ventilator tsena lia tšepahala, lia tšoarella, 'me ho bonolo ho li sebelisa.Li tla ka mefuta e fapaneng e nang le likarolo tse fapaneng ho fihlela litlhoko tsa lipetlele, litleliniki le lits'ebeletso tse ling tsa bongaka.Khamphani e fana ka ts'ebeletso e felletseng ea kamora thekiso le tšehetso ea tekheniki ho netefatsa hore bareki ba bona ba khotsofetse ke sehlahisoa.