FANDOM


Worker-128 Hold up! Under construction
This article or section is currently under construction and is in an unfinished state. If there is an urgent need for information about this topic, comment at the bottom of this page with a question.



The AG 15/AG 20 series of respirators were Belgian civilian masks made by L'Anti-Gaz. The facepiece was based on the M1934, but it had a double hook system and a threaded inlet-outlet. This series had the government-approved authorisation N.121 in Belgium and N.1911 in France.

Some AG 20 masks were exported and used in a military context.

Mask overview Edit

The faceblank was flat moulded into a shape identical to that of the M1934, with smooth rubber on the inside and textured rubber on the outside.

Said faceblank had the following parts attached:

  • An Inlet-outlet piece
  • Two eyepieces
  • A 6-straps system
  • A sponge septum

The inlet-outlet piece, attached to the mask at the front with a special tension clamp, varied slightly among the variants, but the main parts were always: the body, the exhale valve, the threaded cover for the exhale valve and the threaded inlet. With the exception of the French variant, all inlets also sported an inlet valve, a simple rubber disc. The exhale valve was composed of two parts, a rubber base and a thin disc with a stud to connect to the main part.

The eyepieces were 66mm wide and made of triplex glass. They were affixed to the mask with each lens having a top and a bottom aluminium frame. Anti-fogging lenses were positioned in two possible ways, depending on the variant.

The 6-straps system was attached to the mask in 4 points and a hook on each side of the facepiece that would hook onto the lower two straps. The straps could be either like the M1934 material-wise or just be made of rubber.

The sponge septum on this mask serves the purpose of making contact with the face over the nose and therefore reducing the "dead-space" in the mask, which means reducing the space in which air flows, and in which CO2 can accumulate and tire the user out. This sponge septum is directly glued to the inside of the faceblank.

Facepiece variants Edit

Exhale valve cover Edit

The cover of the exhale valve could be of two different types:

  • The early model was round and slightly textured
  • The late-model was studded, to allow a better grip

Harness Edit

There were 3 different types of harness:

  • Military-style harness, used on earlier models
  • Rubber straps harness, with a series of studs for length adjustment
  • Simplified rubber straps harness, without the studs for an even cheaper production cost

Thread Edit

Most facepieces had a 25 mm thread and an inlet valve, with the exception of the French export variant, which sported a 42 mm thread.

Anti-fogging lenses Edit

The anti-fogging lenses could be applied in two ways:

  • On earlier masks they were fixed with the lenses into the facepiece, making them not removable
  • On later masks, they were attached to the lenses using metal inserts that could be lifted and allow replacement if needed

Kit variants Edit

AG 15 kits Edit

The AG 15 family comprised of those masks that were used with the filter directly attached to the facepiece.

Tube Carrier Edit

The AG 15 could be issued with two tube carriers, either one identical to the AG 5 one on earlier kits, or else, on later models, another one similar to the L.702 one, but with a "L'Anti-Gaz" marking and a different colour.

Small Filter Edit

The AG 15 could be issued with four different filters, depending on the variant:

  • the first and earliest type was the same as early AG 5s, very large and made by L'Anti-Gaz
  • the second type was also shared with late AG 5s, it made by L'Anti-Gaz, but it was slightly smaller
  • the third type was made by Sacic, and it was even smaller than the second type
  • The French type, similar in shape to the third type, had a 42 mm thread and an inlet valve

AG 15 Manual Edit

A bilingual manual, it varied depending on the variant is was issued with. Pictures may be found in the gallery at the bottom of the page.

Spare valve Edit

Early AG 15 kits were sold with a spare exhale valve inside a small round box.

Conversion thread Edit

Some AG 15s were issued with a special thread that allowed for 42 mm filters to be used.

AG 20 kits Edit

The AG 20 family comprised of those masks that were used with a large filter connected to the facepiece through a hose.

Carrier Edit

The AG 20 came with a bag marked "Sacic S.A.". The bag was sectioned in two parts, one for the storage of the mask and hose and the other for the filter, as it had a hole in the bottom so that air could pass through.

Large Filter Edit

The filter used was a large Sacic filter, the same used with the E2.

Hose Edit

The hose used had a thread on both ends, it was made most of the times by Sacic and occasionally by L'Anti-Gaz.

AG 20 Manual Edit

A bilingual manual, it varied depending on the variant is was issued with. Pictures may be found in the gallery at the bottom of the page.

Spare anti-fogging lenses Edit

Sometimes spare anti-fogging lenses could be found in a pocket of the bag.

Table Edit

Note that the part of the designation in brackets is not official, and it's only there to distinguish the variants.

Designation Exhale valve cover Harness Thread Anti-fogging lenses Filter Carrier Spare valve Spare

anti-fogging lenses

Conv.

thread

AG. 15 (v1) round military 25 mm fixed small, first type early tube carrier yes no sometimes
AG. 15 (v2) studded military 25 mm fixed small, second type early tube carrier yes no sometimes
AG. 15C (v1) studded rubber 25 mm fixed small, second type early tube carrier yes no no
AG. 15C (v2) studded rubber 25 mm removable small, sacic late tube carrier no no no
AG. 15C (v3) studded rubber, cheap 25 mm removable small, sacic late tube carrier no no no
AG-15 (French export) studded rubber 42 mm removable French type late tube carrier no no no
AG. 20C (v1) studded rubber 25 mm removable large + hose sacic bag no yes no
AG. 20C (v2) studded rubber, cheap 25 mm removable large + hose sacic bag no yes no

Foreign use Edit

Spain Edit

sample text

China Edit

During the late '30s and early '40s, the KMT army sought to improve its chemical defence, due to the heavy use of gas by the Japanese, and therefore an increased local production was supplemented by considerable import. Because Germany was not available due to wartime shortages, another alternative importer had to be found, and Belgium was chosen. Alongside many L.702 masks, some AG. 20Cs were imported too. It's unclear to what scale the latter was used, and whether the facepiece was one made by L'Anti-Gaz or by Sacic.

Manuals Edit

AG. 15 Edit

French side

AG. 15C Edit

French side Edit

Dutch side Edit

References Edit

Community content is available under CC-BY-SA unless otherwise noted.