BC611 FFP2 NR Cup shape Respirator imapereka chitetezo chokwanira kwambiri ndipo ndiyoyenera kugwiritsidwa ntchito panthawi yoyezetsa ndi kuchiza munthu akakhala ndi mpweya kapena wodwala atavala matenda opumira omwe amafalitsidwa pafupi ndi madontho. % kapena kuchulukirachulukira kwa tinthu tating'ono tamafuta.Chigoba chamtundu woterechi chimasefa tinthu ting'onoting'ono ta mlengalenga ndikuletsa zowononga monga madontho amadzi, magazi, madzi am'thupi ndi zobisika. Bungwe la World Health Organisation lalangiza ogwira ntchito yazaumoyo kuvala zodzitchinjiriza kuti tinthu tating'onoting'ono tisatenge kachilomboka.