Vacuum cleaning systems that offer the best cleaning ability – is that what you are seeking? It’s also likely that you believe that cleaning ability is related to power or suction. Actually, it’s not. While there’s no single factor that determines the cleaning ability of the vacuum cleaner you use, understanding how vacuums work and how you can help maintain your vacuum cleaner to perform its best is important. Changing your vacuum cleaner bag is an important step in maintaining the efficiency of your vacuum cleaner. While most vacuum cleaners come with an indicator to help you determine when your cleaner’s dust bag needs to be changed, you can perform a check yourself to see if it is over 50% full as that’s when you need to replace it. Don’t wait until the dust bag in your vacuum cleaner is completely full as it can reduce the suction and cleaning capacity of your vacuum cleaning system. If you use your vacuum cleaner frequently, it is recommended that you change vacuum cleaner bags once a month, especially if you are cleaning a large area over 2000 square feet or if your pet sheds a lot.