I'm at the age where I have plenty of guns and ammo. Now I'm reaching out to gas masks and night vision. I do not know the first thing about gas masks other than I have my old tanker mask from the early 90's in a dufflebag. Probably no idea where to get a filter and its the one that plugs into the equipment and the tube goes into a bag. I wants a few masks and filters. What are the good ones that wont break the bank, and oh yeah, I wear glasses so that's important to know.