Household vacuum cleaner now has almost replaced the traditional manual work, brought great convenience to our lives, when we use a vacuum cleaner, hard to avoid can appear a few little faults, as well as some common sense about the vacuum cleaner is not very understanding, in a vacuum cleaner when the choose and buy some customers often ask a series of problems: barrel type vacuum cleaner dust bag how to install?Vacuum cleaner air leakage is a normal phenomenon?What does efficient HEPA filtering mean and so on.In view of these problems today to sort out and summarize the following about the use of household vacuum cleaner difficult problems to answer, I hope to help you in the purchase of household vacuum cleaner and the use of household vacuum cleaner can be helpful.