4 пары pm2. 5 защита от гриппа фильтр назальный невидимая пыль пыльца аллергия маска удобные носовые фильтры дымка

feature: 100% brand new and high quality material: polyurethane foam activated carbon fiber high density nonwoven fabric size: m diameter 11mm l diameter 13mm size suggestion : men choose l, have very small nose hole choose m women have larger nose hole choose m quantity: 4 pair(8 pcs) each set advantage: 1.filter pm0.25 (equivalent to about pm2.5 particles 1 10) effective rate of 97.79 percent, 2 to haze, industrial pollution, car exhaust, dust, pollen, dust, smoke, secondhand smo...