This Na Um gas mask filter canister is a must-have for any collector or enthusiast of militaria. With its sleek design and high-quality construction, it is sure to impress. The canister is marked with the Na Um logo and is labeled as a gas mask filter. It comes in its original packaging, unopened and ready for use. The canister is perfect for those interested in personal, field gear for gas mask protection. It is a surplus item and is labeled as such, making it an excellent addition to any collection. The theme of the canister is militaria, and it falls under the categories of gas masks, personal, field gear, and collectibles.