Closed, curved smoke protection curtain run in a circular or elliptical form or open curved (snake-like) smoke protection curtain For the time class and temperature class D 60 and/or D 120 (600°C) No residual openings because there are no overlaps, instead there is a ,closed fabric track Integrated into the suspended ceilings Connection to the ceiling mirror with laser-cut closure rail via spring mounted elements Alternatively with direct connection to the lower ceiling (hardly visible, because there is only a 2 mm offset) or in shadow groove version As standard with a 'Gravigen' drive system, i.e. closes without external power source, fire-resistant cables are not necessary Extreme widths of the smoke protection curtains up to 300 m and unrolled length up to 4 m (for curve radius > 4 m) Textile surface is gathered and stored below the ceiling on the closure module Closure module connected across entire smoke protection curtain length Optional: integrated lighting fixtures in the closure panel