Most have - priority tool - MIRA Safety NBC-77 SOF Gas Mask Filter

The gas mask came in a perfect package and can be stored safely for many years. Great addition to the mask and very effective in many situations. Hopefully, I won't need to use - but it is better to be prepared. It is a highly recommended item for survival and war scenarios. Get ahead and get for your family as well. What is the point of protecting only yourself if you have kids and other family members living with you!! Optics always provides the best products, and free shipping is a must!