+1 on this, I live in an apartment without balconies and without external blinds, so one cannot survive without full AC in summer. At least the glass windows ca

+1 on this, I live in an apartment without balconies and without external blinds, so one cannot survive without full AC in summer. At least the glass windows can be opened when it is not raining, some commercial buildings have fixed windows. My parents' house has Venetian blinds and we survived without AC, now they have AC but just for sleep time.