1. I-Latex yamahhala, ukusetshenziswa okukodwa, inzalo ye-EO, uphawu lwe-CE;
2. Isikhwama sephepha noma i-blister ngayinye uyazikhethela;
3. Yenziwe nge-PVC ecacile, ethambile, yezinga lezokwelapha;
4. Unemibala enemibala, kulula ukuyibona osayizi;
5. Ikhithi yemaski ye-PVC ye-laryngeal iyatholakala: kufaka phakathi isirinji kanye ne-lubricant;