NEW XL CHILD GAS MASK Evirstar Defense Products NEW XL CHILD GAS MASK Evirstar Defense Products These masks are new old stock designed for NBC (Nuclear BIO and Chemical) They are child size with tube and NEW Filter the filter is standard NATO issue. Made by Evirstar Defence Products. New Old Stock Size: Child eXtra Large Photo is what you get, mask and filter all unissued new old stock.. Continental US sales only.