If you're looking for a decent construction vacuum without too much fuss, the Kärcher WD 2 Plus S V-15/4/18 is a good choice. With a 15L tank, it's great for smaller jobs in and around the house. You can use the vacuum for both wet and dry dirt. This means that you can vacuum up dust, but also wet leaves or water, for example. This makes it very versatile. Don't feel like buying new dust bags or filters every time? No problem. You can use the vacuum without a bag. This way, you can easily clean the container and the filter, especially when you work with wet dirt.