 People sourcing films for this purpose should choose a product from a manufacturer that can produce results for General Services Administration (GSA) blast ratings, and check with the manufacturer that the installer has sufficient experience and knowledge to offer such products.Safety films can be used as an additional protection against flying glass when glazing is broken by windborne debris.By helping to prevent windows from shattering, or retaining shattered glazing in its frame, these films help maintain the “weather seal” of a building.