West Virginia University ipereka zida zaulere zodziyesera za COVID-19 antigen ndi masks a KN95 kwa ophunzira, aphunzitsi ndi ogwira ntchito pasukulu semesita ino. Malangizo a pang'onopang'ono oti mumalize kudzipangira ...

Kuti mudziwe ngati chilonda chili ndi kachilombo, ndikofunikira kuzindikira ndikuwunika zizindikiro zina, monga kutupa, kufiira, kutentha komweko (chilondacho chimakhala chotentha kuposa madera ozungulira), ndi pre...

Kodi mukufuna kudziwa kukulunga manja anu ngati katswiri wankhonya? Dziwani momwe mungachitire bwino apa kuti musangalale ndikupeza phukusi loyenera lamasewera a nkhonya. Kupeza bandag yabwino ...

1. chopangidwa ndi nsalu ya polypropylene yosawomba komanso yolimbitsidwa pawiri zotanuka lamba wapamwamba kwambiri wopangidwa ndi ukadaulo wa thermosynthetic, chopangidwacho ndi chofewa, champhamvu komanso chokongola; 2. ntchito zotayidwa, yeretsani...

Kugwiritsa ntchito masks azachipatala omwe sanalukidwe kumagwiritsidwa ntchito makamaka m'mabungwe azachipatala, ma labotale, ma ambulansi, mabanja, malo opezeka anthu ambiri ndi malo ena ovala, amatha kuphimba pakamwa pawo, mphuno ...

Padi yopyapyala yophatikizika imapangidwa ndi nsalu yoyera ya thonje yoyera ya 100%. Gauze yofewa imapindidwa mpaka 8, 12, kapena 16ply. Chidutswa chilichonse cha pad yopyapyala yolimba kwambiri chimayikidwa mu ...