1. The document provides instructions for how to operate a vacuum cleaner in 3 steps: first make sure all parts are fixed correctly, then press the power button and move the vacuum from front to back, and finally when finished cleaning turn off the power by pressing the red button to release the dust bag, emptying it, and fixing it back on the machine. 2. The purpose of the text is to provide a sequence of steps to show how to operate a vacuum cleaner by cleaning from front to back of the house and emptying the dust bag when finished. 3. Key features of the procedural text include using command sentences with verbs like "press" and "move", and temporal conjunctions like "first"