A high pressure washer is a cleaning device that pumps water at high pressure (bars or PSI) through a nozzle for cleaning surfaces. The force of the water dislodges dirt, grime, grease, biofilm, etc., much more effectively than regular hosing or scrubbing. These machines are used in many settings: industrial / commercial cleaning, vehicle wash bays, food processing / kitchen hygiene, equipment cleaning, floor / wall cleaning, and more.
So when choosing one, make sure it’s BIS‑certified under IS 17569, has food grade inner materials (preferably SS 304), strong sealing lids, good insulation (vacuum or foam), capacity suited to your need, durable outer shell, and good retention performance (for how many hours).