High filtration efficiency. Filters Out: Dust; Bacteria; Pollen. Latex free. Protects against frigid winter air. Protects against non-toxic dust, powders, pollen and other common airborne irritants. Ideal for sweeping, sanding, jogging, raking, hiking and dozens of other practical uses. Filters out non-toxic dust, bacteria and pollen. Soft, odorless, non-irritating to skin and eyes. Easy to breathe through. Does not contain fiberglass. Made in China.