n95 респиратор 5 слоев защитная 95% фильтрация многоразовая дыхательная маска для лица профессиональные маски as kn95 kf94

in stock , ships within 24 hours ! listed product is produced and distributed abroad and subject to the laws of its country of origin. you may purchase the products for personal use only. about n95 masks: n95 mask can isolate smaller particles, and fit tighter to the face, it is not easy to leak air from the periphery, and the filtration efficiency of particulate matter can reach 95% under standard conditions. the n95 mask is not a disposable mask. in this special case (resource shortag...