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The Ipari teljes álarc (industrial full mask) was used by the industry during the Cold War alongside with the Ipari félálarc.

Overview[]

It is a full face mask made of a single sheet of rubber-coated green canvas formed by 3 seams, 2 on the forehead and one on the chin. It seals on the face via 4cm wide goat leather stitched to a rubber-coated canvas verge but unlike on the 34M it isn't folded out, it is sealed by rubber cement on the edge. The eyepieces can be either shatterproof (it is composed of two glass layers and a thin sheet of cellulose between) glasses or plexi. The 7 pointed, adjustable and elasticated harness is composed of three pieces and sewn to the facepiece. The middle forehead straps is hooked over a metal roller frame and sewn to the outer forehead straps, so these can slide freely and automatically adjusts to the shape of the head. On the nape the temple straps and the strap of the roller frame are hooked up to a metal piece which is riveted to a leather pressure equalizer rectangle. The third part near the bottom would be wrapped behind the neck of the user and hooked to the left side of the mask to provide a tight seal and to prevent accidentally taking off the mask. Elastication of the straps is provided by either springs like on the 67M or by rubber bands like on the 75M. There is a carrying strap on the bottom back of the mask and a chinstrap inside as well. The valves are in one black, oval bakelite piece. The "tulip" styled exhale valve is on top of the downwards facing 40mm DIN or GOST intake covered with white plastic disc. Unlike the Cold War Hungarian masks, the size 1 is the biggest and size 4 is the smallest.

Filters[]

Main article: Hungarian industrial filters

A lot of different filters made by Medicor (A, B, B2, E, P3,…) were used along with fresh air equipment depending on where was it used. The mask was intended to use with a hose but sometimes photos feature these masks with filters directly mounted on the connector.

Bag and kit[]

The bag is very basic, similar to the 51M bag just it is smaller and made of green canvas, also there are no inside sections. Antifog soap was used instead of inserts.

External information[]

Developement[]

It entered in production around 1975, the same time when the 75M replaced the 67M in production. The choice was to make a mask and valve house similar to the one on the 34M but out of bakelite like on the 75M. For unknown reason the designer went further back in Hungarian gas mask development history, all the way to the T. gázálarc. This was probably due to the requirement to ease the use of hoses with the mask so it is better if the filter connector is angled downwards a bit more than on the normal 34M (Ipari gázálarc). However, this is not suitable if the filter is directly mounted on the connector because the filter blocks the head tilting forward. After the connector choice, the exhale valve cover was probably patterned of the T. gázálarc as well.

Price[]

The mask costed 244 HUF in the early 1980s, compared this to a good wage (2500 HUF) it was quite expensive.

Designation[]

Many books or brochures mention it as Ipari teljes álarc, however the right form by the Hungarian grammar is Ipari teljesálarc. The full designation of the 40mm GOST variant according to the MSz 15490/3-76 standard is: Ipari teljes álarc, size, MSz 15490/3.

Gallery[]

References[]

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