The Primacare CB-6831-CS emergency foil Mylar thermal blanket provides warmth by reflecting 90% of the body’s heat and is for use in emergency and survival situations. Foil Mylar is a metallized polyester film used in thermal blankets for its high tensile strength and reflectivity. This material is waterproof and windproof, helping to provide shelter against inclement weather, and it reduces a body’s heat loss through convection, evaporation, and thermal radiation. The blanket measures 62″ x 82″ to provide coverage for one adult, and is compact and lightweight, suitable for first aid kits and backpacking.

Emergency response blankets (also called thermal or space blankets) help keep people warm by reducing heat loss through thermal radiation, evaporation, and convection. They are made from a thin sheet of plastic, often PET (polyethylene terephthalate), coated with a metallic reflecting agent. The airtight metallic reflecting agent reduces convection and evaporation of perspiration. The reflective surface also reduces heat loss by reflecting up to 97% of radiated heat. Emergency response blankets are frequently waterproof and windproof, making them useful for outdoor survival and first aid applications to prevent or treat hypothermia.

Primacare Medical Supplies, Inc. manufactures equipment and supplies for first aid providers. The company, founded in 2005, is headquartered in Passaic, NJ.