Versatile general purpose material Ideal for medical / clinical use PF (Particle Filtration Efficiency) > 99% (for 3-ply) BFE (Bacteria Filtration Efficiency) > 99% (for 3-ply) •Suitable for Class 1,000 – 10,000 cleanroom Sterilized by ethylene oxide and steam irradiation Hypoallergenic Splash resistant