A gas mask that is intended for use in military operations to protect respiratory organs against chemical and biological agents at nuclear-chemical-biological warfares.
	1.Product Name:K-1 gas mask(Korean style gas   mask)(K-1 gas mask) 2.Product No.:SG0401001 3.Type and Size:Large(Left,Right),Medium   (Left,Right),Small(Left,Right)    4.Total Weight: Approx.1,742g (Accessories   included) 5.Material:Natural and Synthetic Rubber(Facepiece)   Ripstop Fabric/Butyl Coated (Protective Hood) 6.Validity(Under sealed conditions):Gask Mask(10   years), Purifying Canister(5 years) 7.Features   Consists of a facepiece, purifying canister,   and protective hood.   Components - Opacity Protection Kit, Water-      Proof Bag.   Voice transmission unit and beverage intake   unit attached to facepiece.   Able to be combined with glasses for people   with low vision.   Currently in use by Korean armed forces.

K-1 Purifying Canister
1.Construction and Material
  Main Body - Aluminum alloy
  Inside - Filtering paper(allowing for filtering liquid agents or solid 
  particulates)
  Activated carbon(allowing for filtering gas agents filtered through filter paper)
2.Scope of Application
  Available for use as a consumable that must be disposed after it has been used 
  for a specific time period.  
  Unavailable at places where oxygen concentrations in air are below 18%.
3.Protective Gas
  Choking agents(CG), blood agents(AC,CK,SA), nuerologic agents(GB)
  blistering agents(HD),cyanic acids(HCN), ozone, organic gases, halogen gases
  (chloride), and acid gases(hydrochloric acid, nitric acid, etc.)
  However, ammonia gases and carbon monoxide cannot be purified.