Kev cai mylar hnab tuaj yeem siv rau ntau yam khoom, nrog rau cov khoom noj, tshuaj, tshuaj pleev ib ce, thiab lwm yam, lawv muab kev tiv thaiv zoo heev tiv thaiv ya raws, oxygen, thiab lwm yam khoom uas tuaj yeem ua rau cov khoom puas, cov hnab mylar tuaj yeem luam tawm nrog. ..
Nyeem ntxiv