The 21st floor is a mechanical floor that houses the air conditioning equipment and its windows are narrower than on the rest of the building.
The windows on the 21st floor are narrower than on the rest of the building. The 21st floor is a mechanical floor that houses the air conditioning equipment.
The 21st floor is a mechanical floor that houses the air conditioning equipment. The windows on the 21st floor are narrower than on the rest of the building.
The 21st floor is a mechanical floor that houses the air conditioning equipment. The windows on the 21st floor are narrower than on the rest of the building.