1. Cov khoom siv nws tus kheej muaj cov khoom tsis muaj tshuaj lom;
2. Nws tuaj yeem ua kom tsis muaj menyuam hauv ntau txoj hauv kev (ntshiab chav ua kom tsis muaj menyuam, gamma irradiation sterilization, ethylene oxide sterilization thiab hydrogen peroxide sterilization);
3. Cov khoom tuav lub sijhawm ntev aseptic tom qab ua kom tsis muaj menyuam;
4. Cov kua dej zoo permeability, roj siab permeability yam ntxwv;
5. Lub zog tsim kua muag zoo heev thiab kev tiv thaiv, tswj cov plua plav tsim;
6. Zoo heev microbial barrier zog;
7. Nws tuaj yeem ua tau yooj yim thaum tshav kub-sealed (ib txwm cua sov-sealing tshuab yog txaus);
8. Uncoated Tyvek ua kom yooj yim rau kev ua haujlwm aseptic.
