Sejoy 3-in-1 vacuum cleaner can not only make your office clean, but also clean your office supplies, such as computer keyboards, computer mainframes and other places that are usually difficult to clean, after having it to clean these places become very easy and simple. The powerful blowing power of the Sejoy 3-in-1 cordless vacuum cleaner not only blows away dust and stains, but can also be of great help during your barbecues and trips. It can be used as a vacuum cleaner, compressed air blower and mini air pump.