are you aware of an opening at the bottom of the window (just below the guarding glass). seems this opening is big enough to drow batteries or small stuff down. Be careful.
I guess it is also design and we may need to find mgt office block the opening to avoid any accident.
do not 封實 later may need to repair the window level!
I think this is critical design problem must be escalated and fixed by the developer asap before the peak decoration period.
Imagine one a 玻子 rolling out from this gap of a window in 4x/F. It could have kill someone!