The 3M™ Gas and Vapour Filter 6054 offers K1 protection against ammonia and its derivatives. Suitable for use with 3M™ Reusable Respirators featuring the Bayonet filter connection system: 3M™ Reusable Full Facepiece 6000 Series, 3M™ Reusable Half Facepiece 7500 Series, 3M™ Reusable Half Facepiece 6500 QL Series and 3M™ Reusable Halfpiece 6000 Series. For K1 breathing protection against ammonia and its derivatives, use 3M™ Ammonia Filters, 6054. Our filters have a green, colour-coded label according to the EN14387 classification system to show the level of protection they provide.