Won-Door has introduced its FireGuard Slim Door model, a cost-effective, fire-rated, accordion-style door designed to eliminate the need for traditional swing doors. The FireGuard Slim Door was created to enhance the design appeal and traffic flow of narrow-corridor and small-opening applications. The door’s lack of exposed hardware virtually eliminates maintenance costs. With up to a 90-minute fire rating, the door deploys automatically in seconds when an emergency arises. This allows full visibility of hallways and utilization of the full corridor width. Specifier’s options are up to 9-feet wide and 7- or 8-feet tall.