AVON M-50 PROTECTIVE GAS MASK SIZE Small , Filters, Carrying Case. Check out my other listing!Sz SMALL In Bag GAS MASK SET, Filters, Carrying Case, Army" is in sale since Tuesday, July 28, 2020. This item is in the category "Collectibles\Militaria\Current Militaria (2001-Now)\Original Items\Personal, Field Gear\Gas Masks". The seller is "alva-benj" and is located in Killeen, Texas. This item can be shipped to United States.