In order to minimise the risk of personal injury, we only use ESG-H hardened safety glass.
From the first floor upwards we also use laminated glass with high penetration resistance film.
The version with glass panes with anti-fall protection was tested by the University of Munich using several pendulum impact tests on closed, 11cm open (gap ventilation) and corners. It achieved security-level:
So it's possible to have the glazings with gap ventilation-openings, without the need of a balustrade.