Smallest vacuum cleaner
The record for making the smallest vacuum cleaner was set by Shubham Rout (born on December 6, 2006) of Bhadrak, Odisha. He made a vacuum cleaner (measuring 1.21 cm) using mobile vibrator, 9V motor battery, net cloth to filter dust particles, eraser to support and hold the motor, battery wire, aluminum sheet for the propeller, resistance, plastic syringe to make knob and rubber tape as a sealing device to prevent the entry of air from the sides, as confirmed on May 17, 2021.