One of the firsts, pre-war French design, modern gas mask and one of the most common French Civilian Defense mask with the TC 38 model.

 The rubber facepiece is a modern and complex moulding and well shaped to fit the face of the wearer. The facepiece includes two Tissot vents included in the moulding. It has been manufactured in various rubber colours, beige red-brown and black.

Only the eyepieces are of the same old type than on the ARS / ANP / TC 38, but of larger diameter.

The exale valve is located on the front of the facepiece   in a melalic casing with a screwed grid cover.

The filter is screwed vertically, just before the chin, on a metalic fitting.

The seven points rubber straps with two hooks are moulded with the mask.

The mask is transported in the same cylindricl standard can than the TC 38 mask  and other Défense Passive masks.

Several rubber manufacturers have been made this mask. It has never been commercialized for the civilian market and industrial purpose, but only after the war, to French Company GDF ( Gaz De France, distribution of domestic cooking / heating gas ) The GDF masks has been equiped with Triplex Glass eyepieces in place of the celluloïd ones of the common model and with a corrugated hose connected to an air supply device.

A children size C 38 mask has been manufactured before the war. It is equiped with smaller eyepieces of the same dimensions  as the ANP T 31 / TC 38

The C 38 was also manufactured after the war and was provided to the Parisian Police .

The post war production has a simplified moulding principleand was equiped with a head harness made of spring straps as on the ANP T 31 / TC 38.

        The C38 is also the forerunner of the post   
        war French Army ANP M 51 mask, who is 
        of  the same general shape.