I bought an M40A1 gasmask off craigslist, in excellent condition. And I’m giving it a thorough cleaning with a damp lint free cloth. And washing the internal drinking tube with soapy water <FONT size=3><?xml:namespace prefix = o ns = "urn:schemas-microsoft-comI was wondering, when removing the inhalation valve in 3M’s instructions it says grab the two ears (don’t grab spokes) and pull straight away. I’m worried I’m going to damage it, is there some trick to it not mentioned in the instructions? How should I clean the non-removable drinking tube that’s connected to the mask? I was thinking, remove the canteen quick connector and then swab the tube with a soapy pipe cleaner and then followed by pipe cleaners with clean water on them. I would just suck a little diluted vodka through it but that might damage the tube. What is the best place for storing the mask for longest service life? Dry and air tight (eg, Tupperware with desiccant) or permeable (eg, cardboard box)? Thanks.