NIOSH, CE and ISI Tested; Filters >95% Non-Oil based Particles; FFP1 Class, Filters at least 80% solid air borne particles Provides unparalleled protection: The N95 Surgical Mask has been rigorously tested to provide sufficient protection against dust and particles. Available in a flat-fold option: Lightweight and thin construction with a soft inner layer for added comfort. Elastic head straps are sonic welded inside the outer layers to minimise pressure points. Incredibly lightweight â?? 33% lighter than other comparable respirators to decrease wearer fatigue, which makes for a more comfortable, longer wearing time. Universal, one size respirator to fit almost any shape/size face