Ventilation pane assembly

For a door or window, a ventilation pane assembly comprising:

• two face panels at two opposite sides, said face panels each having a plurality of horizontal slats for the passing therethrough of air current, one of said face panel having a slot at a suitable location;
• a fixed perforated panel retained between said two face panels spaced from the one which has a slot thereon, said fixed perforated panel being made from a flat board having a plurality of vent holes thereon;
• at least one movable perforated panel retained between said two face panels adjacent to the one which has slot thereon, said at least one movable perforated panel having a plurality of vent holes thereon and a side strip at one side at right angle inserted through said slot;
• an intermediate frame retained between said fixed perforated panel and said at least one movable perforated panel, said intermediate frame having at least one opening for mounting each of said at least one movable perforated panel;
• and
• wherein moving said side strip causes the vent holes on said at least one movable perforated panel to be respectively aligned with the vent holes on said fixed perforated panel so as to let air current pass through the ventilation pane assembly, or to be deviated from the vent holes on said fixed perforated panel so as to block air current from passing through the ventilation pane assembly.