When the shape of the mask is not close to the human face, the dangerous objects in the air will leak in from the tightness and enter the human respiratory tract.
Lapho ukuma kwesifihla-buso kungasondele ebusweni bomuntu, izinto eziyingozi ezisemoyeni zizongena zisuke ekucingeni bese zingena emgudwini wokuphefumula womuntu.