Desinfection and care set for all oxygen masks, Ideal average for care your oxygen mask, Remove reliably dirt and buds, Set was used with German Air Force Life Support.,more infos : http://www.ulmer-aero.com/swf/fr/oxy/accessoire/trousse.pdf,Item is old stock goods, maybe still usable,BUT OFFER IS FOR DISPLAY ONLY! COLLECTORS ITEM!NOT FOR USE!!!