Rov siv dua tus kheej-suction filitering respirator tiv thaiv plua plav kn95 fim silicone npog.
Nta: Cov Qauv Tshiab, Khoom Siv Tsim, Kn95, Anti Tus Kab Mob
Khoom siv: Khoom noj Khoom haus qib silicone