COVID19 KN95 5 层呼吸器面罩 - 20 包 5 片
5-layer protective KN95 has a filter efficiency greater than or equal to 95%. FDA registered and CE approved, this mask features a comfortable ear loop, adjustable nose wire, 5 layers containing cotton, non-woven cotton, meltblown fabric, and a hot air filter cotton. It's filter can block out harmful pollutants, viruses, bacteria, and droplets (non-oil). Uniquely shaped to fit all faces with excess space to breathe easily. 1 pack consists of 5 face masks.