The synthetic blankets are made of virgin fibers such as polyester or acrylic.
> Medium thermal type, with a TOG of 2.5, is the minimum for hot or temperate climates (even in hot countries, nights can be cold).
> High thermal type, with a TOG of 4, is appropriate for cold climates.
> A blanket with TOG 1.5 is appropriate for indoor use, on a bed, in a house with heating facilities. Outdoors in most climates, or even indoors without a heater, a blanket with a TOG 2.5 is the minimum.
They are supplied in the first phase of an emergency to provide effected victims with immediate relief covering them thermal resistance blankets.