FFP3 Standard - Highest filtration level in Europe. Filters at least 99% of particles from 0.6µ diameter. Super tightness is guaranteed by extra inner sealing lip. As this mask does not contain a valve, it can be used everywhere, because wearer and environment are protected at the same time! The FFP3 half mask, which is anatomically shaped to fit the facial features, allows easy breathing throughout the duration of the wearing session. The additional inner sealing lip facilitates the adaptation to most face shapes, together with the nose clip made of mouldable metal, the required tightness is assured at all times. Made of high-quality 5-layer filter material, with elastic, adjustable straps of braided rubber thread. FFP3 standard = Filters at least 99% of particles up to a size of 0.6 μm Mask without additional valve. May therefore be used everywhere, because wearer and environment are protected here at the same time Extra tight and comfortable due to additional inner sealing lip Tested after EU Directive EN149:2001+A1:2009 by accredited Spanish EU test centre | CE 0370 Five effective filtering layers - free of latex or natural rubber. Each mask is hygienically and airtight individually packed and quality tested Mask intended for single use. Fastening by head straps