It is a flat rubber moulding process facepiece. It has not Tissot vents but has a shaped sponge rubber pad around the nose to avoid the mist on the glass eyepieces.

The Triplex glass eyepices are tightened on the facepiece by means of crimped rings.

The cast aluminium front piece holds a long corrugated hose, connecting the mask to a large filter. The flutter type exhallation valve is located just under the hose connection.

The six points head harness is made of spring straps.

A transportation bag with shoulder strap is issued with the mask