The DeWalt 20V MAX 1/2 Gallon Wet/Dry Hand Vacuum, No. DCV517, has a filter that traps 99.97 percent of dust as small as 0.3 microns, according to the company. A membrane coating minimizes dust penetration through the filter and allows the cartridge to be rinsed after use. This vacuum features a tank capacity of 0.5-gal as well as a flexible hose attachment. This 2.5’ hose is extendable up to 5’ and accepts DeWalt vacuum accessories with the addition of the Universal AirLock Adaptor. The DCV517 also has a gripped handle for comfort. Powered by the DeWalt 20V MAX battery system, the vacuum offers a significant run-time improvement over previous models.