DIY Mini Vacuum Cleaner Using Water Bottle and DC Motor

In this project, I’ve created a simple vacuum cleaner using a water bottle, a DC motor, and a toy fan. I cut the bottle at the bottom and center, placing a round piece of thermocol at the center to support the DC motor and fan. A 9V battery powers the motor, controlled by a switch to turn it on and off. When switched on, the fan spins and creates suction, collecting dust through the bottle’s mouth. The dust gets trapped inside the bottle, and I can easily remove it by opening the bottle at the center. This is a low-cost, effective way to build a basic vacuum cleaner using household materials! The vacuum cleaner sucks dust due to the spinning fan inside the bottle, which creates airflow. When the DC motor powers the fan, it spins rapidly, pushing air out through the back of the bottle (or through small openings). This creates low pressure inside the bottle compared to the outside air. As a result, air from outside the bottle rushes in through the open mouth to balance the pressure, and with it, the dust and small particles get carried into the bottle. The fan keeps pulling air and dust inside as long as it's spinning, creating the suction effect that makes the vacuum cleaner work.