Ajax F2

Ajax F2
Preceded by	Ajax F1 T.33
Succeeded by
Filter connection	42mm
Made in	France
Issued to	Civilians
Manufacturer	Caoutchouc Antigaz S.A.

The Ajax F2 was a French licensed copy of the Italian T.33.

Mask overview

The mask is composed of the following parts:

The faceblank, made of moulded rubber, has the following parts attached to it:

• the housing for the exhale valve
• the threaded inlet piece
• the eyepieces
• the straps

The inlet piece allows the filter to be threaded in. Unlike the T.33, the inlet valve is inside the filter.

The exhale valve allows exhaled air to go outside and prevents poisoned air to get in. It's made of rubber, it opens under the light pressure of exhaling and closes hermetically under the negative pressure produced by the inhalation. It can be easily inspected and possibly replaced by unscrewing the lid of its housing. The exhale valve is identical to the one of the T.33 and fully interchangable.

The eyepieces are made of "Triplex" glass, which itself is composed of two glass layers and a thin sheet of cellulose. This kind of glass prevents poisoned air to get into the mask even after being hit, as only the outside layer of glass would be shattered and the other two layers would maintain the seal. The glasses are affixed to the mask through aluminium frames. Another cellulose lens is inserted in each socket; it's covered in a special material that helps to prevent fogging.

The 5-strap system on this mask is almost identical to the hook system of the T.33, with one frontal strap, two elastic straps at the temples and two hooked elastic straps at the cheeks.

H

Kit

Ajax F2 advertisement

The Ajax F2 came with a civilian filter, a metal tube carrier and occasionally some instructions. The filter could be of many different types, all with a 42 mm thread and an inlet valve at the top.

A regular kit

Inlet valve in a filter

Marking on the filter

Another kit, with a different filter

Another kit, another filter