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No-blade fan window，By modifying original no-blade fan, make it air-out in two directions, put the system on the window, achieving blowing inward, venting outward, having multiple additional functions while maintaining original functions of fan and window, such as blow dry clothes hung externally, exhausting oily gas in kitchen, lowering temperature for cooling. Meanwhile increase capability of measuring air speed to detect the speed of incoming air, intelligently adjust its own air speed to make final air speed constant.