Ozone-Based Disinfecting Device Comprising a Flow Sensor

An ozone-based disinfecting device comprising a mixer having a generally hollow body with a water inlet for water under pressure;

• a spray nozzle for generating a generally conical spray of water introduced by way of the water inlet;
• a contact chamber communicating with a gas inlet for ozone rich gases;
• an outlet aperture from the contact chamber with the outlet aperture being coaxial with the spray nozzle and spaced apart therefrom, and a flow sensing device for sensing the extent of flow of water through the spray nozzle, wherein the flow sensing device is an electronic flow sensing device for sensing vibration caused by a flow of water through the mixer includes a piezoelectric sensor and an appropriate associated circuit for generating a signal indicative of the rate of flow of water through the mixer wherein the mixer is composed of a first part in the form of a shroud defining the outlet aperture and an open end opposite the outlet aperture that receives a second part defining the water inlet, gas inlet, and a pocket between the water inlet and gas inlet with lateral merging of the gas inlet chamber and contact chamber taking place beneath the pocket.