The video demonstrates how to set up users on a system, starting with navigating to the Security section from the menu screen. Users are added by entering their username, defining access levels, and setting passwords. Additionally, the process includes creating an NFC operator account and programming NFC cards for user authentication. Finally, it covers logging in users using the programmed NFC cards, providing a comprehensive guide to user management and access control. Click to learn more about the  Lasair® Pro Airborne Particle Counter from Particle Measuring Systems.