Le ndwangu inezici zokuvikelwa, ukunethezeka, ukungena komswakama.
Kungavimbela ukungena kwamanzi, igazi, utshwala nezinye iziphuzo, ngebanga lesi-4 noma ngaphezulu kwe-hydrophobicity, ukuze kungangcolisi izingubo nomzimba womuntu. Gwema ukudlulisela igciwane kubasebenzi bezokwelapha ngegazi lesiguli, uketshezi lomzimba nokunye uketshezi ngesikhathi sokuhlinzwa.
Noma ngabe yi-SARS noma i-coronavirus pneumonia, izingubo zokuvikela ezempilo zibamba iqhaza elibalulekile kukho konke ukusabalala kwegciwane, futhi ikhwalithi yezingubo zokuvikela ezempilo iyathuthuka kancane kancane ngokuthuthuka kobuchwepheshe bokukhiqiza. Njengempahla yezingubo zokuzivikela, ikhwalithi yendwangu ibalulekile, ngakho-ke sigxila kwikhwalithi yomkhiqizo.
Indwangu yami ingafinyelelwa ekuvikeleni okuphezulu kwe-anti-static nekilasi 4. Imikhiqizo yami ingasetshenziselwa izindinganiso eziningi zezingubo zokuzivikela, isibonelo i-GB19082-2009, i-N14126, i-EN 13795 njll.