Depending on the rug you go with, it can be a significant investment, and so how it is maintained becomes important. One way that some people consider is to use the high-pressure method, but is it safe to pressure wash a rug? The great benefit of using a pressure washer (also called a power washer) is that the water gets down deep into the material, forcing the dirt and grime out. What's important to note first, though, is that you can't use a pressure washer on just any old rug. So, which rugs can you pressure wash safely?