Enclose or not
Enclosing wins on insulation and sound, but loses the outdoor feel. Open balconies are airier but need wind, shade, dust and privacy solved.
Shade an open balcony
Put smart windproof rollers on the window face; for terraces and courtyards add a folding canopy or aluminum pergola, extending on demand.
Privacy & ventilation
Street-side low floors can use Gechén T3000 dense weave to cut dust and gaze; high floors use Lingyong 816 sheer fabric for light with softened gaze.
One plan
Combine 'facade roller + top canopy + detail screen' and an open balcony can cover wind, shade, dust and privacy together.
Exact config and price vary by opening size, fabric and control. Submit a request and an advisor quotes by your actual situation.