Ihlinzeka ngemaski ethambile ye-silicone yokwenza isivalo somoya esiqinile ezungeze ikhala nomlomo ukuqinisekisa ukuthi akukho mfucuza kanye nemiphumela emibi embalwa

Ngokwakhiwa kwekhwalithi ephezulu ukuze kusetshenziswe kahle futhi kuphephile.

Umsindo we-whistle njengesikhumbuzo sokunciphisa ukuphefumula kwakho, ukukwazisa kalula isivinini esifanele sokuphefumula.

Imaski yobukhulu obujwayelekile yabantu abadala nezingane.

Isisekelo kanye nemaski kungaba lula ukuyifaka nokuyiqaqa, okuyinto elula ukuyihlanza.