General Use: This concerns rechargeable vacuums (from 12 to 19 volts) ideal for picking up hair and crumbs from the floor, couches, and car. They do not replace an electric vacuum.
Light Cleaning: This concerns rechargeable vacuums (up to 11 volts) ideal for collecting crumbs and dust from the table or desk.
Thorough Cleaning: This concerns rechargeable vacuum cleaners (over 20 volts) that are ideal for keeping the house clean, even for carpets. They replace the traditional electric vacuum cleaner, but are not suitable for deep cleaning.