Number 5. Cheap, effective face masks:
https://tuoitre.vn/vinatex-cung-ung-8...
https://tuoitre.vn/khau-trang-vai-kha...
https://thanhnien.vn/tai-chinh-kinh-d...
https://tuoitre.vn/vinatex-tung-tiep-...
https://vnexpress.net/kinh-doanh/vina...
https://www.vcci.com.vn/chi-nen-mua-d...
http://hanoitv.vn/g-d132471.html
Number 4: Robots!
https://www.tienphong.vn/xa-hoi/xem-r...
http://giadinh.net.vn/y-te/doc-dao-ro...
https://bnews.vn/nhan-vien-y-te-dac-b...
Number 3: Smart hand sterilizing devices!
https://laodong.vn/xa-hoi/doc-dao-may...
http://quochoitv.vn/Videos/chao-buoi-...
Number 2: Mobile Sterilization Chambers!
https://thanhnien.vn/gioi-tre/quan-co...
https://tuoitre.vn/buong-khu-khuan-to...
https://baotainguyenmoitruong.vn/phon...