Protective face mask, type - CM-4
Full-face protective mask, type CM-4 Full-face protective mask, type CM-4M (with a system for drinking)
Application of the product:
Connected with a suitable filter or breathing apparatus, the CM-4 protective mask is used for protection of the face, eyes and breathing organs against chemical poisonous agents and industrial poisons in form of gases, vapours, solid and liquid aerosols, as well as against biological aerosols and radioactive dust originated by explosion of a nuclear weapon or by accidents of facilities using nuclear materials. Functional reliability of the protective mask is guaranteed within the temperature range from –30°C to +50°C. The mask can be used in industry, agriculture, for emergency services and fire brigades, civil protection units, police, army etc.
Standards and manufacturer’s technical regulations: ČSN EN 136, ČSN EN 132, ČSN EN 134, ČSN EN GOST, ČSN EN 148-1 (DIN3182), TPP 65 001 83
Dimensions and types:
The CM-4, CM-4M protective masks are manufactured in three sizes: No. 3 (small) and No. 4 (medium) and No. 5 (large). Each mask is marked with its size number on the face-piece.
The chamber for filter connection with the thread Rd 40x1/7” are marked with Rd 40x1/7” and EN-148 signs on the outside of the chamber.
The chambers for filter connection with thread OZ 40x4mm are not marked.
Mask colour: gray or black
Technical specifications:
Average weight, CM-4: 400 g
Average weight, CM-4M: 450 g
Number of mask sizes: 3
Effective field of view: 78 %
Binocular field of view: 28 %
Filter connection thread: Rd 40x1/7” or OZ 40x4mm
Breathing resistance at air flow rate of 30 l/min.:
- inhalation resistance at the inner mask: max. 30 Pa
- inhalation resistance at the valve chamber: max. 25 Pa
- exhalation: max. 100 Pa
Leaktightness: max. 100 Pa per 1 minute at underpressure of 1 200 Pa
Minimum intelligibility: 95%
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E-mail: rochelle@rochelle.cz, http://www.rochelle.cz
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