Code 93100-Sï¼? For ages 6-12 Features Suitable for OR, ER, patient care area, oral, dental procedure, clinics, isolation, IC practices, patients and other applications. 3-ply, non-woven material, 99% BFE at 3 micron. 1. Type: Flat shape, 3-ply, non-sterile 2. Size: For kids 3. Color: Green, blue, pink, white 4. Outer Layer: Water-repellent non-woven 5. Middle Layer: High level static filtration non-woven 6. Inner Layer: Microfilter Thermal-bond non-woven 7. Nose band: PE iron wire