'I'm looking for a sturdy, perferably airtight, locker for dust masks. I keep some dusk masks in my (backpack) kit, and so they need to resist crushing and be as small as possible while still doing the job.

Why dust masks? Here in Seattle we have possibilities of earthquakes and I work downtown. I suspect it would be quite the mess. Also, there are the possibilities of volcanic outbursts here (Rainier, St Helens, etc). And of course, everyone recalls the footage of 9/11.

I've tried various tupperware type containers which seem like they would be optimal, but I haven't found an optimal size. Either they are too big and heavy, or too small.

I also have found some actual mask lockers, but I can't tell how sturdy they are. Certainly they don't appear to be airtight.

Moldex Locker

Same one? Looks different

Thanks,

-john