Bathing device and method thereof

A method of taking a bath using a bathing device for washing people's body, comprising:

• a cleaning head comprising a suction housing, a liquid injection assembly inside said suction housing, and a control valve assembly, wherein said control valve assembly controls spraying cleaning fluid onto people's body and removing said fluid with vacuum, and said control valve also controls discontinuing spraying cleaning fluid onto people's body and releasing vacuum in said suction housing to facilitate free move of said cleaning head;
• a clean fluid reservoir;
• a fluid pump coupled between and in fluid communication with said liquid injection assembly and said clean fluid reservoir through flexible tubings;
• a waste fluid separator and reservoir, comprising a liquid storage chamber, an air/liquid separator, an inlet coupled to and in air and fluid communication with said cleaning head, and an outlet coupled to and in air communication with a vacuum source;
• a vacuum pump coupled to and in air communication with said outlet of said waste fluid separator and reservoir,
• wherein an operator closes said control valve in said control valve assembly to start spraying cleaning fluid onto person's body and removing said fluid with vacuum, and opens said control valve in said control valve assembly to discontinue spraying cleaning fluid onto person's body and releasing vacuum in said suction housing to facilitate free move of said cleaning head.