Non-Woven Inner & Outer Layers.
FeaturesDye-Free, chemical-free and soft comfort cellulose inner layer. 100% latex-free and fiberglass-free filter layers.Soft and comfortable elastic earloops fully encapsulated by polyester thread for added comfort. BreathCool filter = 1.6 differential pressure lets you breath smoothly & easily without unpleasant moisture buildup.Lightweight, three-layer construction is comfortable to wear. Quad fold design easily forms a cone-like shape to provide exact fit.>98% particle and bacteria filtration efficiency give you secure protection.Suitable for oral, dental procedures and other surgery/operation.