The vacuums are strictly for vacuuming crumbs, small debris and other very small pieces of trash from within the interior of your car. Please do not use it to vacuum up liquid of any sort as this can and usually does damage the vacuum lines and will most definitely inhibit the effectiveness of the vacuum system for all customers. It will cause delays due to mandatory maintenance that would become necessary to clear out the clogs. Our vacuums are also not to be used for sucking up large pieces of food, diapers, wrappers, clothing, rope, or anything bigger than a nickel. Please help us keep the vacuums working well for all by throwing away big piece of trashes by hand before using the vacuums!