Closed, curved smoke apron run in a circular or elliptical form or open curved (snake-like) smoke apronFor 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 webIntegrated into the suspended ceilings Connection to the ceiling plan with laser-cut end rail through spring mounted elements As an alternative with direct connection to the lower ceiling (hardly visible, because there is only a 2 mm offset) or in shadow groove designAs standard with 'Gravigen' drive system, i.e. closes without external power source, fire-resistant cables are not necessaryExtreme widths of the smoke apron up to 300 m and drop length up to 4 m (for curve radii > 4 m) The textile web is gathered and stored below the ceiling on an closure moduleClosure module connected across entire smoke protection curtain lengthOptional: integrated lighting fixtures in the closure panel