gas masks
 

it's not a tin foil thread. i live about a half mile or less from a anhydrus storage area. is their any type of mask that dosen't cost a mint. that can be used in case of a leak? thought i'd ask because it's spring/summer and all the meth cookers will try to tap the tank's the dumb ass's!

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Most people have heard why not to buy the surplus masks and filters, but if you havnt, dont bother. Out of date filters can sometimes be dangerous I beleive not to mention useless. You might want to google the ratings that the filters have to make sure they are rated for the chemical you might be exposed to.