The GP-5 Gas Mask is a Soviet-made single filter gas mask COOL GIFT ! ! ! It was issued to the Soviet population starting in 1970 Production ended in 1989 It is a lightweight mask, weighing 1.09 kg (2.42 lbs). It can operate in all weather and withstand temperatures from -40 degrees (Celsius & Fahrenheit) to 114 Celsius (174 Fahrenheit) They were originally made to protect the wearer from radioactive fallout during the Cold War and were distributed to most fallout shelters.