Vacuum Cleaner Tune-Up
Some quick fixes may save you the cost of a new model
Disposable filters should be replaced every four to six months. Washable filters can last up to two years but should be cleaned every eight weeks. For both disposable and washable HEPA filters, check the manufacturer's guidelines for when to replace. If your vacuum has a prefilter designed to capture large particulates, it should be checked every three to four months.