I'm trying to get my GHB together and to prep the house for any possibilities. One of the things I want to add is some particulate masks. I've seen 3M N95 masks that seem to fit well and usually are mentioned in various articles. I've found some that also have activated charcoal in them and they claim to be good against things like hanta and sarin, but don't look like they fit all that well. I know that an actual respirator is the real way to go, but I know I wouldn't always carry the respirator. I figure that a respirator might be good in the car or house, but a mask fits in a pocket so I can carry it everywhere. So individually wrapped would be a good thing. Of course I'd like it to be good for all threats, to me the most likely are dirty bomb, a flu scare or maybe chemicals from either terrorist or industrial accident. Can anyone recommend any specific masks? How about a good but affordable respirator? Would I need a hood for a 4 y.o. or is that old enough for a mask?