Pressure washers are hand-held devices that pressurize the water, sending it out of the nozzle in a powerful spray intended to blast away grit and filth. There are quite a lot of different pressure washers offered on the market, but their common job is in simple terms to clean things, using this powerful jet of water. Their most widespread use is for blasting the dirt off of homes but they are also used for cleaning driveways, porches, and countless other things as well.