Purchased for training exercises. I am a former Ground Self-Defense Force officer who retired. I bought it, but I never used it and left it untouched for several years. I bought it new at the shop (Daily Yamazaki) inside the local garrison. The tie band that seals the mouthpiece is still attached. Unused♪ However, since I took it out of the bag, I've marked it as "Like new" m(_ _)m Thank you.