Protective Mask CM-4

The protective mask CM-4, in combination with a suitable filter, protects the face and the respiration ways from the consequences of toxic gases, vapors, and aerosols, radioactive dust, and biologically harmful substances.

There is a wide use for the gas mask in the civilian sector, mainly in places contaminated with industrial air pollution, with very bad-smelling substances, as well as in work with the possible occurrence of harmful vapors. The mask set guarantees a reliable protective function within the temperature range of -30 °C to +50 °C. A great advantage of the mask is its low weight and a feeling of relative comfort when worn.

The protective mask CM-4M, in combination with a suitable filter, is used for the protection of face, eyes, and respiration ways against chemical toxic substances and industrial poisons, which are present in the form of gases, vapors, solid and liquid aerosols, and further against biological aerosols, against radioactive dust resulting from an explosion of a chemical weapon, or from accidents resulting from facilities and devices which use nuclear materials. The perfect design of the mask safeguards perfect protection against the above mentioned harmful substances during the mask application, independently of meteorological conditions. The mask CM-4M is complemented with an apparatus for receiving liquids, which makes it possible to drink beverages from a plastics bottle with the mask applied, the bottle being, of course, provided with a special valve-containing stopper.

The mask facepiece is provided with a face sealing collar, with panoramic eye sight holes, sound penetrating lining, and an apparatus for receiving liquids. From the inner side of the valve chamber, there is an inner mask, which decreases the weariness of the user during physiological fatigue, as well as the possibility of dew formation on inner side of the glass of the eye sight holes.

Technical data:
Facepiece:
Mean weight
Sizes quantity
General viewing field

Pressure losses at air flow 30 l/min.
when inhaling at the inner mask
when inhaling at the valve chamber
when exhaling
400 g
3
73%

max. 30 Pa
max. 25 Pa
max. 100 Pa