China ndiyomwe imapanga makina opangira mpweya wabwino ndipo yakhazikitsa njira zopha tizilombo toyambitsa matenda kuti zitsimikizire chitetezo cha odwala ndi ogwira ntchito yazaumoyo.Ma ventilator amapha tizilombo pogwiritsa ntchito kuwala kwa UV, mpweya wa hydrogen peroxide, ndi mankhwala ena opha tizilombo kuti athetse ma virus ndi mabakiteriya.Mafakitole opanga makina opangira mpweya ku China ali ndi ukadaulo wapamwamba kwambiri ndipo amatsatira miyezo yapadziko lonse lapansi kuti apange zida zamankhwala zapamwamba komanso zotetezeka.