Original Soviet Military PMK-2 Full Face Protective Gas Mask Kit (Size 2 / Medium). An authentic, highly collectible Soviet military PMK-2 (??? -2 /??????????????????????????????????????????) field respirator set. Developed during the late Soviet period as an advanced modern replacement for legacy civilian and general-issue masks, the PMK-2 is designed for full facial and respiratory protection against toxic chemical agents, radioactive dust, industrial contaminants, and biological aerosols. The PMK-2 is renowned for its distinctive wide trapezoidal viewing lenses, high speech intelligibility, ambidextrous side filter mounting, and an integrated sealed drinking mechanism. A centerpiece item for Cold War militaria collections, post-apocalyptic costume builders S. T. A. L. K. E. R. Metro 2033, film production prop masters, and historical display setups. Items like this are more than just equipment – they are living artifacts of a nation defending its freedom. ?? TECHNICAL SPECIFICATIONS & PERFORMANCE DATA. Model / Facepiece: PMK-2 / MB-1-80 (?? -1-80). Size: Size 2 Medium /???? 2 – fits standard adult head circumference approx. 118.5-121 cm / hat size 56-58 cm. Operating Temperature Range: -40°C to +40°C (-40°F to +104°F). Operating Humidity: Effective up to 98% relative humidity in day/night and multi-season conditions. Breathing Resistance (Inhalation): At a constant airflow of 30 L/min: 180 Pa (18 mm H2O). Speech Intelligibility: Up to 95% voice clarity via built-in acoustic speech diaphragm. Continuous Wear Duration: Designed for up to 24 hours of continuous deployment. Filter Operating Resource: Rated up to 240 hours of active filtration. 310 × 180 × 180 mm (12.2 × 7.1 × 7.1 in). Weight (Mask only, without bag): Approx. 960 g (2.1 lbs). ? KEY DESIGN FEATURES. Wide-Angle Field of View: Equipped with large trapezoidal curved glass lenses engineered to maximize peripheral vision and situational awareness. Acoustic Speech Diaphragm: Built-in forward diaphragm capsule providing crisp vocal communication and intelligibility without unmasking. Ambidextrous Bayonet Filter Mount: Features a dual-sided quick-twist bayonet port allowing the filter to be attached to either the left or right cheek for optimal weapon cheek-weld. Integrated Hydration Conduit: Internal drinking tube mechanism designed to connect to military canteens via special valve caps in contaminated environments. Durable Molded Black Rubber: Vulcanized rubber body offering a secure, comfortable ergonomic seal. 5-Point Adjustable Harness: Heavy-duty elastic strapping system with positive-locking buckles for quick fitting. ? COMPLETE SET INCLUDES. 1x PMK-2 Black Rubber Facepiece (MB-1-80) – Size 2 (Medium). 1x Original Metal Filter-Absorber Canister (FAC) with protective fabric knit cover/sock. 1x Heavy Canvas Field Transport Shoulder Bag with internal pockets, dividers, and secure closure toggles. 1x Specialized Canteen Adaptor Cap with built-in hydration valve mechanism. Accessory Inserts: Protective lens films and retaining ring components. Depot Storage Condition: This mask comes directly from long-term sealed military storage. It is preserved with original white factory storage talcum powder and carries a classic vintage rubber aroma. The powder can be easily cleaned off with a damp cloth if desired. It is vintage surplus and is NOT tested, certified, or marketed for modern personal protective safety, industrial air purification, or hazardous chemical life-support use. ?? Search Tags / Collector Keywords. Soviet gas mask size 2, pmk2 respirator, pmk 2 mask set, black rubber gas mask, stalker costume, metro 2033 cosplay, cold war surplus, mb1 80 mask, authentic militaria, ukraine war artifact, genuine soldier gear. Feel free to send a message before purchasing-we respond promptly.