... .In clinical offices,housework,gardening and maitenance for filtering dust,pollen,and bacteria.6.In laboratories and factories for ... chemicals,and fine particles. Specification:1.Material:Polypropylene fabric+Active Carbon Fabric+Melt-blown fabric+Polypropylene fabric.2.Dimension: 17. ... green,blue,pink,yellow.5.Sanitation and quality in accord with CE,FDA,ISO9001 standards.6.Customers' logo can be ...