Introduction
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            Prior to starting, make sure vacuum is unplugged. 
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            Set down the vacuum so that the clear debris bin is at the base of the vacuum and the silver cyclone is at the top. 
 
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            Twist the blue knob clockwise. 
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            Gently lift the filter up and out of the center of the vacuum cyclone (the silver part at the top of the vacuum). 
 
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                            Conclusion
                          
                          To reassemble your device, follow these instructions in reverse order.