Spetsnaz PMK-5 panoramic gas mask with drinking system

Description

PMK-5 Spetsnaz version of GP-21,
Russian panoramic gas mask with drinking systemIt combined with most of army helmets.
condition: new;
any size;
weight: ~750 g with filter.
Application:
It may be applied in all climatic zones of the Russian Federation at a temperature from -40°C till +40°C, when the oxygen concentration is no less than 18 % (by volume).
It is produced for two types of height that is comfortable to find a suitable facepiece for the head’s size.
Design features:
The facepiece has an improved visibility throughthe panoramic glass and has an intercommunication equipment.
The panoramic glass of this facepiece is produced from theresistant splinterproof and unsweating plastic.
The facepiece has a small weight worn on the face.
The facepiece is ergonomically improved.
Total vision – no less than 80%.
The facepiece may be combined with a majorityof protective head equipment
Technical characteristics:
The inward leakage under the facepiece while checking by a nephelometricmethod mustn’t exceed, %0,0001 %Resistance to the air flow of the facepiece by inhalation when the constant air flowis (30+/-1) dm3/min, %29,4 Pa