Water damage through sealed aura?
Hey all! My basement flooded a few weeks ago, where I was keeping a box of 3m auras. The box was kind of submerged when we discovered the flood, and I put all the auras in a couple of bags away from it and they dried. Since the individual masks were sealed in plastic, I assumed they probably hadn't gotten wet and I've continued to use them, but I just picked a sealed one up and saw that there was red and black around the edges, where I think the staples must have rusted or something after contact with water. Are the auras unsafe to use if they did get in contact? I really don't want to waste hundreds of masks. Thanks!