2020 взрослых хлопок анти-пыль pm2. 5 фильтрационная маска без фильтра вставки с носом кусок регулируемая маска для лица черный красный цвет

plastic nose piece, effectively increase the breathing space of the nose, so that breathing more comfortable and smooth adjustable nose piece according to each person different nose shape to get fit with the face, so that the sealing effect is better the intimate u-shaped design, increase the mouth and jaw comfort and sealing, does not affect the communication insert the 5 layer filter pm2.5 filter,fine denier polypropylene fabric, with soft, warm, good moisture permeability and wicking effect