When you need High Pressure and Volume, like when you need to float a large room connected to a hallway of heavy carpet, you need the power of a DryMax Velocity 3800. This machine is for serious professionals who need all the force and lifting power of a full horse power unit that not only moves a lot of air but moves it with the force to lift massive loads. The Dry Max Velocity 3800 will lift areas of carpet that would normally require multiple, less powerful machines. Low amp machines don’t even compete with this caliber of machine.