Kupha tizilombo toyambitsa matenda m'dera la ventilator ndi gawo lofunikira pakuwonetsetsa chitetezo cha odwala omwe amagwiritsa ntchito ma ventilator.Izi zidapangidwa kuti zizitsuka bwino ndikuphera tizilombo tosiyanasiyana pagawo la mpweya wabwino, kuphatikiza chubu, chinyezi, ndi chigoba.Pochotsa mabakiteriya owopsa ndi ma virus, mankhwalawa amathandizira kupewa matenda ndikuchepetsa chiopsezo cha kuipitsidwa.Njira yophera tizilombo ndiyofulumira komanso yosavuta, ndikupangitsa kuti ikhale yankho losavuta kwa akatswiri azachipatala.Izi ndizoyenera kugwiritsidwa ntchito m'zipatala, zipatala, ndi malo osamalira kunyumba.