To change the bag of your vacuum cleaner, you first need to find out what kind of bag your appliance uses. This information is available in the user’s manual, but keep in mind that multiple models may be available for a single vacuum cleaner. To change a disposable bag, open the vacuum chamber, determine how full the bag is, remove it, and dispose of it. If your appliance uses bags that are reusable, follow the same process, but dump the contents of the bag in the bin, and wipe out the chamber of the vacuum cleaner with a cloth before replacing the bag.