1. Latex dawb, siv ib zaug, EO sterilization, CE cim;
2. Ib lub hnab ntawv-poly lossis blister yog xaiv tau;
3. Ua los ntawm ntshiab, mos, kho mob qib PVC;
4. Xim coded, yooj yim los txheeb xyuas qhov ntau thiab tsawg;
5. PVC laryngeal daim npog qhov ncauj khoom siv muaj: nrog rau cov koob txhaj tshuaj thiab cov roj nplaum;