The semi-pro models make either a terrific consumer investment or an entry-level professional choice.
These models are made with more heavy duty components than their consumer counterparts. If you have some seriously stubborn stains on your driveway or garage floor, you'll need the extra power of a prosumer surface cleaner.
Professional surface cleaners are built to take daily use by either gas or electric commercial pressure washers.
Most are rated up to 4000 PSI and can accept hot water. They are engineered for light weight and portability. If you use a surface cleaner to make your living, or will be using one regularly, get a commercial unit that will be sure to last.