... yellow,green,pink 3.Size:17.5*9.5cm(for adult) Tie long:40cm 1. Soft, lightweight, ... 5.In clinical offices,housework,gardening and maitenance for filtering dust,pollen,and bacteria.6.In laboratories ... and factories for blocking liquid mists,harmful airborne chemicals,and fine ... Dimension: 17.5*9.5cm(for adult use) 14.5*9.5cm(for children use)3.Packaging: inner packing ...