Our DISASTER SURVIVAL ITEMS (DSI) increase a person's ability to overcome or do something. A Fire Blanket gives you the ability to overcome or stop a fire. A few DSIs are already in packages, like the Zip Stitches in package 2. or the pepper spray in package 3. Others can be bought as add-ons, like this 1pc Pomerol 11in1 Dual Port Reusable Half Face Respirator Mask, Reusable, Pull-On, Chemical, Biological, Radiological Contamination, Dust Respirator Gas Masks for Chemical And Radiation.