Heat Reflective Emergency Blanket: Also known as a space blanket, Mylar blanket, first aid blanket, emergency blanket, thermal blanket or weather blanket) is an especially low-weight, low-bulk blanket made of heat-reflective thin plastic sheeting. Their design reduces the heat loss in a person's body which would otherwise occur due to thermal radiation, water evaporation, or convection. Their compact size before unfurling and light weight makes them ideal for use in spacecraft—where cargo space is at a premium. Civilian versions may be included in first aid kits and also in camping equipment. Lost campers and hikers have an additional possible benefit: the metallic surface appearance flashes in the sun, allowing use as an improvised locator-beacon for searchers. Blanket
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