The USGI M40 Gas Mask is a great piece of protective equipment for military personnel and survivalists alike. This mask comes with a used filter, carrying satchel, spare lenses, owner's manual,errubb veil, and waterproof bag. The M40 mask was designed to provide superior protection against chemical, biological, radiological, and nuclear threats, its durable construction and battle-proven performance make it a must-have for anyone in need of a reliable gas mask. 
 
*New filters sold separately, after use they must be replaced to maintain affectiveness. The used filter included should not be used for a real world scenario.