Eli laphu linempawu zokukhusela, ezentofontofo, ezinokufuma kokufuma.
Inokuthintela ukungena kwamanzi, igazi, utywala kunye nolunye ulwelo, ngebanga le-4 okanye ngaphezulu kwe-hydrophobicity, ukuze ingangcolisi iimpahla kunye nomzimba womntu. Kuphephe ukudlulisela intsholongwane kubasebenzi bezonyango ngegazi lesigulana, ulwelo lomzimba kunye nolunye uvalo ngexesha lotyando.
Nokuba yi-SARS okanye i-coronavirus pneumonia, iimpahla zokhuselo zonyango zidlala indima ebalulekileyo ekusasazeni intsholongwane, kwaye umgangatho wempahla yokhuselo lonyango ngokuthe ngcembe uyaphucuka ngokuphuculwa kwetekhnoloji yemveliso. Njengempahla yempahla ekhuselayo, umgangatho welaphu kubalulekile, ngoko ke sigxila kumgangatho wemveliso.
Ilaphu lam linokufikelelwa kwi-anti-static ephezulu kunye neklasi ye-4 yokukhusela. Iimveliso zam zingasetyenziselwa imigangatho emininzi yempahla ekhuselayo, umzekeloGB19082-2009, N14126, EN 13795 njl.