1. Yenziwe ngezinto ze-PVC ezinobuhlobo nokusingqongileyo, ilinganisa izihlunu zomoya kunye nolwakhiwo lwe-mucosal layer ye-trachea, kunye neeleya ezinemibala ecacileyo (ubume obugudileyo be-trachea eqhelekileyo, ukudumba kunye neenkcukacha ze-mucus ze-asthmatic trachea), ihlala ixesha elide kwaye ayinavumba, ifanelekile ukuboniswa kwexesha elide.
2. Ibandakanya iimodeli ezimbini ezifanayo ze-trachea eqhelekileyo kunye ne-asthmatic pathological trachea, kunye nebhodi yokubonisa echaza ngokucacileyo umahluko we-anatomical wemisipha yomoya kunye neengqimba ze-mucosal. Ulwakhiwo luzinzile kwaye umboniso othelekisayo ucacile.
3. Uthotho lwezinto ezithengiswayo oluvuthiweyo, uluhlu lwezinto ezaneleyo, ukuxhasa ukuthengwa kwezinto ngobuninzi, ukuhanjiswa kwezinto ngokukhawuleza emva koku-odola, ukuqinisekisa inkqubela phambili yokufundisa nophando.
4. Imodeli kunye nebhodi yokubonisa kulula ukuyifaka, ilungele ingcaciso yokufundisa ngaphandle kwebhokisi, akukho ndibano inzima
iyimfuneko, isetyenziswa lula ngabasebenzi bezonyango, ootitshala, kunye nabafundi.