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Lightweight disposable dust mask with valve for protection against very fine dusts, fibres, aqueous mists and oil based mists. The elasticated straps, adjustable nose clip and easy breath single exhalation valve deliver a contoured comfortable fit and use. FFP3 masks have an APF (Assigned Protection Factor) of 20, therefore if worn correctly; they will reduce exposure by at least a factor of twenty. Conforms to EN149-FFP3 Specifications Protects against airborne water particles so helpful in virus protection such as flu.