50 шт одноразовые рот маска для лица 3 слойные фильтрующие маски антипылевые капли загрязнения эпидемическая защита маска pm 2.5 респиратор

blue non-woven fabric is used to prevent dust, smoke, pollen, dust, etc. three layers of protection: non-woven outer layer + filtration + inner layer of non-woven paper. it is breathable and comfortable with low respiratory resistance. plastic bridge, hidden fixed nose. more suitable for all types. high elastic flat ear strap. ears that don't tighten. inner layer: it is very comfortable and soft to non-woven fabric, reducing the probability of skin allergy.